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Import NetBSD nawk

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This commit is contained in:
Thomas Veerman 2012-06-06 13:03:39 +00:00
parent a23f4844ba
commit 5ea9e707be
24 changed files with 2121 additions and 485 deletions
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2
commands/Makefile
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@ -2,7 +2,7 @@
.include <bsd.own.mk>
SUBDIR= add_route arp ash at awk \
SUBDIR= add_route arp ash at \
backup badblocks banner basename \
btrace cal \
cawf cd cdprobe checkhier cpp \

25
commands/awk/Makefile
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@ -1,25 +0,0 @@
.include <bsd.own.mk>
PROG= awk
SRCS= awkgram.y b.c lex.c lib.c main.c parse.c proctab.c run.c tran.c
LDADD= -lm
DEPEND+= ${LIBM}
YHEADER= yes
QUIET_YACC= yes
CPPFLAGS+= -I. -I${.CURDIR}
build-tools: maketab
proctab.c: maketab
./maketab > proctab.c
maketab.lo: awkgram.h
maketab: maketab.lo
${HOST_LINK.c} maketab.lo -o $@
CLEANFILES= maketab proctab.c maketab.lo
.include <bsd.prog.mk>

2
external/Makefile vendored
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@ -1,3 +1,3 @@
SUBDIR=bsd
SUBDIR=bsd historical
.include <bsd.subdir.mk>

7
external/historical/Makefile vendored Normal file
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@ -0,0 +1,7 @@
# $NetBSD: Makefile,v 1.1 2010/08/26 14:57:15 christos Exp $
.include <bsd.own.mk>
SUBDIR+= nawk
.include <bsd.subdir.mk>

5
external/historical/nawk/Makefile vendored Normal file
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@ -0,0 +1,5 @@
# $NetBSD: Makefile,v 1.1 2010/08/26 14:57:16 christos Exp $
SUBDIR+= bin
.include <bsd.subdir.mk>

41
external/historical/nawk/bin/Makefile vendored Normal file
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@ -0,0 +1,41 @@
# $NetBSD: Makefile,v 1.8 2011/08/16 10:45:37 christos Exp $
WARNS?= 4
CWARNFLAGS.clang+= -Wno-self-assign
.include <bsd.own.mk>
BINDIR?= /usr/bin
DIST= ${.CURDIR}/../dist
.PATH: ${DIST}
PROG= awk
SRCS= awkgram.y b.c lex.c lib.c main.c parse.c proctab.c run.c tran.c
CPPFLAGS+= -I${DIST} -I.
LDADD+= -lm
.if !defined(HOSTPROG)
DPADD+= ${LIBM}
.endif
YHEADER= yes
.if defined(HAVE_GCC) || defined(HAVE_PCC)
COPTS+= -Wno-pointer-sign
.endif
COPTS.run.c += -Wno-format-nonliteral
COPTS.tran.c += -Wno-format-nonliteral
# info file originally from GNU awk 3.1.3, adjusted for nawk slightly
# Don't install on Minix, we don't have it.
#.PATH: ${NETBSDSRCDIR}/external/gpl2/gawk/dist
#TEXINFO= awk.info
# During the tools build (from src/tools/awk/Makefile),
# src/tools/Makefile.host changes .CURDIR back and forth between
# src/tools/awk and src/usr.bin/awk. For some unknown reason, including
# bsd.info.mk here leads to the obj dir being created at the wrong time,
# while .CURDIR is src/usr.bin/awk. Work around the problem by not
# including bsd.info.mk when MKINFO=no.
.if ${MKINFO} != "no"
.include <bsd.info.mk>
.endif
.include <bsd.prog.mk>

22
external/historical/nawk/bin/TODO vendored Normal file
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@ -0,0 +1,22 @@
$NetBSD: TODO,v 1.1 2010/08/26 14:57:16 christos Exp $
Besides general regression testing to ensure everything still works
with nawk instead of gawk, following GNU awk extensions should be implemented
or handled somehow (the list is probably incomplete, please add entries
if anything is missing):
* String functions: gensub() (partly done, finish backref. support)
* (done) Time functions: strftime(), systime()
* --posix flag, which would switch off nawk extensions over POSIX awk (?)
* special file names: /dev/pid, /dev/ppid, /dev/pgrpid, /dev/user,
/dev/stdin, /dev/stdout, /dev/stderr, /dev/fd/X
* special variables: ARGIND, ERRNO, FIELDWIDTHS, IGNORECASE, RT
Also, the manpage should be improved to be generally more helpful
and document extensions over what POSIX says about awk.
Other misc:
* run.c: don't limit files[] to FOPEN_MAX (which is ridiculously low),
make the limit the current process open file limit
* nawk doesn't permit empty RE, like
// { do_something; }

732
external/historical/nawk/bin/awk.1 vendored Normal file
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@ -0,0 +1,732 @@
.\" $NetBSD: awk.1,v 1.2 2011/04/20 10:10:32 drochner Exp $
.\"
.\" Copyright (C) Lucent Technologies 1997
.\" All Rights Reserved
.\"
.\" Permission to use, copy, modify, and distribute this software and
.\" its documentation for any purpose and without fee is hereby
.\" granted, provided that the above copyright notice appear in all
.\" copies and that both that the copyright notice and this
.\" permission notice and warranty disclaimer appear in supporting
.\" documentation, and that the name Lucent Technologies or any of
.\" its entities not be used in advertising or publicity pertaining
.\" to distribution of the software without specific, written prior
.\" permission.
.\"
.\" LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
.\" INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
.\" IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
.\" SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
.\" IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
.\" ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
.\" THIS SOFTWARE.
.\"
.Dd May 25, 2008
.Dt AWK 1
.Os
.Sh NAME
.Nm awk
.Nd pattern-directed scanning and processing language
.Sh SYNOPSIS
.Nm
.Op Fl F Ar fs
.Op Fl v Ar var=value
.Op Fl safe
.Op Fl d Ns Op Ar N
.Op Ar prog | Fl f Ar filename
.Ar
.Nm
.Fl version
.Sh DESCRIPTION
.Nm
is the Bell Labs' implementation of the AWK programming language as
described in the
.Em The AWK Programming Language
by
A. V. Aho, B. W. Kernighan, and P. J. Weinberger.
.Pp
.Nm
scans each input
.Ar file
for lines that match any of a set of patterns specified literally in
.Ar prog
or in one or more files
specified as
.Fl f Ar filename .
With each pattern
there can be an associated action that will be performed
when a line of a
.Ar file
matches the pattern.
Each line is matched against the
pattern portion of every pattern-action statement;
the associated action is performed for each matched pattern.
The file name
.Ar -
means the standard input.
Any
.Ar file
of the form
.Ar var=value
is treated as an assignment, not a filename,
and is executed at the time it would have been opened if it were a filename.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl d Ns Op Ar N
Set debug level to specified number
.Ar N .
If the number is omitted, debug level is set to 1.
.It Fl f Ar filename
Read the AWK program source from specified file
.Ar filename ,
instead of the first command line argument.
Multiple
.Fl f
options may be specified.
.It Fl F Ar fs
Set the input field separator
.Va FS
to the regular expression
.Ar fs .
.It Fl mr Ar NNN , Fl mf Ar NNN
Obsolete, no longer needed options.
Set limit on maximum record or
fields number.
.It Fl safe
Potentially unsafe functions such as
.Fn system
make the program abort (with a warning message).
.It Fl v Ar var Ns = Ns Ar value
Assign the value
.Ar value
to the variable
.Va var
before
.Ar prog
is executed.
Any number of
.Fl v
options may be present.
.It Fl version
Print
.Nm
version on standard output and exit.
.El
.Pp
An input line is normally made up of fields separated by white space,
or by regular expression
.Va FS .
The fields are denoted
.Va $1 ,
.Va $2 ,
\&..., while
.Va $0
refers to the entire line.
If
.Va FS
is null, the input line is split into one field per character.
.Pp
A pattern-action statement has the form
.Lp
.Dl pattern \&{ action \&}
.Lp
A missing \&{ action \&}
means print the line;
a missing pattern always matches.
Pattern-action statements are separated by newlines or semicolons.
.Pp
An action is a sequence of statements.
Statements are terminated by
semicolons, newlines or right braces.
An empty
.Ar expression-list
stands for
.Va $0 .
String constants are quoted
.Em \&"\ \&" ,
with the usual C escapes recognized within.
Expressions take on string or numeric values as appropriate,
and are built using the
.Sx Operators
(see next subsection).
Variables may be scalars, array elements
(denoted
.Va x[i] )
or fields.
Variables are initialized to the null string.
Array subscripts may be any string,
not necessarily numeric;
this allows for a form of associative memory.
Multiple subscripts such as
.Va [i,j,k]
are permitted; the constituents are concatenated,
separated by the value of
.Va SUBSEP .
.Ss Operators
.Nm
operators, in order of decreasing precedence, are:
.Pp
.Bl -tag -width ident -compact
.It Ic (...)
Grouping
.It Ic $
Field reference
.It Ic ++ --
Increment and decrement, can be used either as postfix or prefix.
.It Ic ^
Exponentiation (the
.Ic **
form is also supported, and
.Ic **=
for the assignment operator).
.It + - \&!
Unary plus, unary minus and logical negation.
.It * / %
Multiplication, division and modulus.
.It + -
Addition and subtraction.
.It Ar space
String concatenation.
.It Ic \*[Lt] \*[Gt]
.It Ic \*[Le] \*[Ge]
.It Ic != ==
Regular relational operators
.It Ic ~ !~
Regular expression match and not match
.It Ic in
Array membership
.It Ic "\*[Am]\*[Am]"
Logical AND
.It Ic "||"
Logical OR
.It Ic ?:
C conditional expression.
This is used as
.Ar expr1 Ic \&? Ar expr2 Ic \&: Ar expr3 No .
If
.Ar expr1
is true, the result value is
.Ar expr2 ,
otherwise it is
.Ar expr3 .
Only one of
.Ar expr2
and
.Ar expr3
is evaluated.
.It Ic = += -=
.It Ic *= /= %= ^=
Assignment and Operator-Assignment
.El
.Ss Control Statements
The control statements are as follows:
.Pp
.Bl -hang -offset indent -width indent -compact
.It Ic if \&( Ar expression Ic \&) Ar statement Bq Ic else Ar statement
.It Ic while \&( Ar expression Ic \&) Ar statement
.It Ic for \&( Ar expression Ic \&; Ar expression Ic \&; \
Ar expression Ic \&) Ar statement
.It Ic for \&( Va var Ic in Ar array Ic \&) Ar statement
.It Ic do Ar statement Ic while \&( Ar expression Ic \&)
.It Ic break
.It Ic continue
.It Ic delete Va array Bq Ar expression
.It Ic delete Va array
.It Ic exit Bq Ar expression
.Ar expression
.It Ic return Bq Ar expression
.It Ic \&{ Ar [ statement ... ] Ic \&}
.El
.Ss I/O Statements
The input/output statements are as follows:
.Pp
.Bl -tag -width indent
.It Fn close expr
Closes the file or pipe
.Ar expr .
Returns zero on success; otherwise nonzero.
.It Fn fflush expr
Flushes any buffered output for the file or pipe
.Ar expr .
Returns zero on success; otherwise nonzero.
.It Ic getline Bq Va var
Set
.Va var
(or
.Va $0 if
.Va var
is not specified)
to the next input record from the current input file.
.Ic getline
returns 1 for a successful input,
0 for end of file, and \-1 for an error.
.It Ic getline Bo Va var Bc Ic \*[Lt] Ar file
Set
.Va var
(or
.Va $0 if
.Va var
is not specified)
to the next input record from the specified file
.Ar file .
.It Ar expr Ic \&| getline
Pipes the output of
.Ar expr
into
.Ic getline ;
each call of
.Ic getline
returns the next line of output from
.Ar expr .
.It Ic next
Skip remaining patterns on this input line.
.It Ic nextfile
Skip rest of this file, open next, start at top.
.It Ic print Bo Ar expr-list Bc Bq Ic \*[Gt] Ar file
The
.Ic print
statement prints its arguments on the standard output (or to a file
if
.Ic \*[Gt] file
or to a pipe if
.Ic | Ar expr
is present),
separated by the current output field separator
.Va OFS ,
and terminated by the
output record separator
.Va ORS .
Both
.Ar file
and
.Ar expr
may be literal names or parenthesized expressions; identical string values in
different statements denote the same open file.
.It Ic printf Ar format Bo Ic \&, Ar expr-list Bc Bq Ic \*[Gt] Ar file
Format and print its expression list according to
.Ar format .
See
.Xr printf 3
for list of supported formats and their meaning.
.El
.Ss Mathematical and Numeric Functions
AWK has the following mathematical and numerical functions built-in:
.Pp
.Bl -tag -width indent
.It Fn atan2 x y
Returns the arctangent of
.Ar x Ic / Ar y
in radians.
See also
.Xr atan2 3 .
.It Fn cos expr
Computes the cosine of
.Ar expr ,
measured in radians.
See also
.Xr cos 3 .
.It Fn exp expr
Computes the exponential value of the given argument
.Ar expr .
See also
.Xr exp 3 .
.It Fn int expr
Truncates
.Ar expr
to integer.
.It Fn log expr
Computes the value of the natural logarithm of argument
.Ar expr .
See also
.Xr log 3 .
.It Fn rand
Returns random number between 0 and 1.
.It Fn sin expr
Computes the sine of
.Ar expr ,
measured in radians.
See also
.Xr sin 3 .
.It Fn sqrt expr
Computes the non-negative square root of
.Ar expr .
See also
.Xr sqrt 3 .
.It Fn srand [expr]
Sets seed for random number generator (
.Fn rand )
and returns the previous seed.
.El
.Ss String Functions
AWK has the following string functions built-in:
.Pp
.Bl -tag -width indent
.It Fn gensub r s h [t]
Search the target string
.Ar t
for matches of the regular expression
.Ar r .
If
.Ar h
is a string beginning with
.Ic g
or
.Ic G ,
then replace all matches of
.Ar r
with
.Ar s .
Otherwise,
.Ar h
is a number indicating which match of
.Ar r
to replace.
If no
.Ar t
is supplied,
.Va $0
is used instead.
.\"Within the replacement text
.\".Ar s ,
.\"the sequence
.\".Ar \en ,
.\"where
.\".Ar n
.\"is a digit from 1 to 9, may be used to indicate just the text that
.\"matched the
.\".Ar n Ap th
.\"parenthesized subexpression.
.\"The sequence
.\".Ic \e0
.\"represents the entire text, as does the character
.\".Ic & .
Unlike
.Fn sub
and
.Fn gsub ,
the modified string is returned as the result of the function,
and the original target is
.Em not
changed.
Note that the
.Ar \en
sequences within replacement string
.Ar s
supported by GNU
.Nm
are
.Em not
supported at this moment.
.It Fn gsub r t "[s]"
same as
.Fn sub
except that all occurrences of the regular expression
are replaced;
.Fn sub
and
.Fn gsub
return the number of replacements.
.It Fn index s t
the position in
.Ar s
where the string
.Ar t
occurs, or 0 if it does not.
.It Fn length "[string]"
the length of its argument
taken as a string,
or of
.Va $0
if no argument.
.It Fn match s r
the position in
.Ar s
where the regular expression
.Ar r
occurs, or 0 if it does not.
The variables
.Va RSTART
and
.Va RLENGTH
are set to the position and length of the matched string.
.It Fn split s a "[fs]"
splits the string
.Ar s
into array elements
.Va a[1] ,
.Va a[2] ,
\&...,
.Va a[n] ,
and returns
.Va n .
The separation is done with the regular expression
.Ar fs
or with the field separator
.Va FS
if
.Ar fs
is not given.
An empty string as field separator splits the string
into one array element per character.
.It Fn sprintf fmt expr "..."
Returns the string resulting from formatting
.Ar expr
according to the
.Xr printf 3
format
.Ar fmt .
.It Fn sub r t "[s]"
substitutes
.Ar t
for the first occurrence of the regular expression
.Ar r
in the string
.Ar s .
If
.Ar s
is not given,
.Va $0
is used.
.It Fn substr s m [n]
Returns the at most
.Ar n Ns No -character
substring of
.Ar s
starting at position
.Ar m ,
counted from 1.
If
.Ar n
is omitted, the rest of
.Ar s
is returned.
.It Fn tolower str
returns a copy of
.Ar str
with all upper-case characters translated to their
corresponding lower-case equivalents.
.It Fn toupper str
returns a copy of
.Ar str
with all lower-case characters translated to their
corresponding upper-case equivalents.
.El
.Ss Time Functions
This
.Nm
provides the following two functions for obtaining time
stamps and formatting them:
.Bl -tag -width indent
.It Fn systime
Returns the value of time in seconds since the start of
.Tn Unix
Epoch (Midnight, January 1, 1970, Coordinated Universal Time).
See also
.Xr time 3 .
.It Fn strftime "[format [, timestamp]]"
Formats the time
.Ar timestamp
according to the string
.Ar format .
.Ar timestamp
should be in same form as value returned by
.Fn systime .
If
.Ar timestamp
is missing, current time is used.
If
.Ar format
is missing, a default format equivalent to the output of
.Xr date 1
would be used.
See the specification of ANSI C
.Xr strftime 3
for the format conversions which are supported.
.El
.Ss Other built-in functions
.Bl -tag -width indent
.It Fn system cmd
executes
.Ar cmd
and returns its exit status
.El
.Ss Patterns
Patterns are arbitrary Boolean combinations
(with
.Ic "! || \*[Am]\*[Am]" )
of regular expressions and
relational expressions.
Regular expressions are as in
.Xr egrep 1 .
Isolated regular expressions
in a pattern apply to the entire line.
Regular expressions may also occur in
relational expressions, using the operators
.Ic ~
and
.Ic !~ .
.Ic / re /
is a constant regular expression;
any string (constant or variable) may be used
as a regular expression, except in the position of an isolated regular expression
in a pattern.
.Pp
A pattern may consist of two patterns separated by a comma;
in this case, the action is performed for all lines
from an occurrence of the first pattern
though an occurrence of the second.
.Pp
A relational expression is one of the following:
.Bl -tag -offset indent -width indent -compact
.It Ar expression matchop regular-expression
.It Ar expression relop expression
.It Ar expression Ic in Ar array-name
.It ( Ar expr , expr,\&... Ic ") in" Ar array-name
.El
.Pp
where a
.Ar relop
is any of the six relational operators in C,
and a
.Ar matchop
is either
.Ic ~
(matches)
or
.Ic !~
(does not match).
A conditional is an arithmetic expression,
a relational expression,
or a Boolean combination
of these.
.Pp
The special patterns
.Ic BEGIN
and
.Ic END
may be used to capture control before the first input line is read
and after the last.
.Ic BEGIN
and
.Ic END
do not combine with other patterns.
.Ss Built-in Variables
Variable names with special meanings:
.Bl -hang -width FILENAMES
.It Va ARGC
argument count, assignable
.It Va ARGV
argument array, assignable;
non-null members are taken as filenames
.It Va CONVFMT
conversion format used when converting numbers
(default
.Qq %.6g )
.It Va ENVIRON
array of environment variables; subscripts are names.
.It Va FILENAME
the name of the current input file
.It Va FNR
ordinal number of the current record in the current file
.It Va FS
regular expression used to separate fields; also settable
by option
.Fl F Ar fs .
.It Va NF
number of fields in the current record
.It Va NR
ordinal number of the current record
.It Va OFMT
output format for numbers (default
.Qq "%.6g"
)
.It Va OFS
output field separator (default blank)
.It Va ORS
output record separator (default newline)
.It Va RS
input record separator (default newline)
.It Va RSTART
Position of the first character matched by
.Fn match ;
0 if not match.
.It Va RLENGTH
Length of the string matched by
.Fn match ;
-1 if no match.
.It Va SUBSEP
separates multiple subscripts (default 034)
.El
.Ss Functions
Functions may be defined (at the position of a pattern-action statement) thus:
.Bd -filled -offset indent
.Ic function foo(a, b, c) { ...; return x }
.Ed
.Pp
Parameters are passed by value if scalar and by reference if array name;
functions may be called recursively.
Parameters are local to the function; all other variables are global.
Thus local variables may be created by providing excess parameters in
the function definition.
.Sh EXAMPLES
.Bl -tag -width indent -compact
.It Ic length($0) \*[Gt] 72
Print lines longer than 72 characters.
.Pp
.It Ic \&{ print $2, $1 \&}
Print first two fields in opposite order.
.Pp
.It Ic BEGIN { FS = \&",[ \et]*|[ \et]+\&" }
.It Ic "\ \ \ \ \ \ {" print \&$2, \&$1 }
Same, with input fields separated by comma and/or blanks and tabs.
.Pp
.It Ic "\ \ \ \ {" s += $1 }
.It Ic END { print \&"sum is\&", s, \&" average is\ \&",\ s/NR\ }
Add up first column, print sum and average.
.Pp
.It Ic /start/, /stop/
Print all lines between start/stop pairs.
.Pp
.It Ic BEGIN { # Simulate echo(1)
.It Ic "\ \ \ \ " for (i = 1; i \*[Lt] ARGC;\ i++)\ printf\ \&"%s\ \&",\ ARGV[i]
.It Ic "\ \ \ \ " printf \&"\en\&"
.It Ic "\ \ \ \ " exit }
.El
.Sh SEE ALSO
.Xr egrep 1 ,
.Xr lex 1 ,
.Xr sed 1 ,
.Xr atan2 3 ,
.Xr cos 3 ,
.Xr exp 3 ,
.Xr log 3 ,
.Xr sin 3 ,
.Xr sqrt 3 ,
.Xr strftime 3 ,
.Xr time 3
.Pp
A. V. Aho, B. W. Kernighan, P. J. Weinberger,
.Em The AWK Programming Language ,
Addison-Wesley, 1988.
ISBN 0-201-07981-X
.Pp
.Em AWK Language Programming ,
Edition 1.0, published by the Free Software Foundation, 1995
.Sh HISTORY
.Nm nawk
has been the default system
.Nm
since
.Nx 2.0 ,
replacing the previously used GNU
.Nm .
.Sh BUGS
There are no explicit conversions between numbers and strings.
To force an expression to be treated as a number add 0 to it;
to force it to be treated as a string concatenate
\&"\&" to it.
.Pp
The scope rules for variables in functions are a botch;
the syntax is worse.

7
commands/awk/FIXES → external/historical/nawk/dist/FIXES vendored
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@ -25,6 +25,13 @@ THIS SOFTWARE.
This file lists all bug fixes, changes, etc., made since the AWK book
was sent to the printers in August, 1987.
May 23, 2010:
fixed long-standing overflow bug in run.c; many thanks to
nelson beebe for spotting it and providing the fix.
fixed bug that didn't parse -vd=1 properly; thanks to santiago
vila for spotting it.
Feb 8, 2010:
i give up. replaced isblank with isspace in b.c; there are
no consistent header files.

0
commands/awk/README → external/historical/nawk/dist/README vendored
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0
commands/awk/awk.1 → external/historical/nawk/dist/awk.1 vendored
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18
commands/awk/awk.h → external/historical/nawk/dist/awk.h vendored
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@ -48,6 +48,7 @@ extern int safe; /* 0 => unsafe, 1 => safe */
#define RECSIZE (8 * 1024) /* sets limit on records, fields, etc., etc. */
extern int recsize; /* size of current record, orig RECSIZE */
extern char EMPTY[];
extern char **FS;
extern char **RS;
extern char **ORS;
@ -61,16 +62,15 @@ extern char **SUBSEP;
extern Awkfloat *RSTART;
extern Awkfloat *RLENGTH;
extern char *record; /* points to $0 */
extern uschar *record; /* points to $0 */
extern int lineno; /* line number in awk program */
extern int errorflag; /* 1 if error has occurred */
extern int donefld; /* 1 if record broken into fields */
extern int donerec; /* 1 if record is valid (no fld has changed */
extern char inputFS[]; /* FS at time of input, for field splitting */
extern int dbg;
extern char *patbeg; /* beginning of pattern matched */
extern uschar *patbeg; /* beginning of pattern matched */
extern int patlen; /* length of pattern matched. set in b.c */
/* Cell: all information about a variable or constant */
@ -126,6 +126,8 @@ extern Cell *rlengthloc; /* RLENGTH */
#define FTOUPPER 12
#define FTOLOWER 13
#define FFLUSH 14
#define FSYSTIME 15
#define FSTRFTIME 16
/* Node: parse tree is made of nodes, with Cell's at bottom */
@ -203,8 +205,6 @@ extern int pairstack[], paircnt;
#define NCHARS (256+3) /* 256 handles 8-bit chars; 128 does 7-bit */
/* watch out in match(), etc. */
#define NSTATES 32
typedef struct rrow {
long ltype; /* long avoids pointer warnings on 64-bit */
union {
@ -216,16 +216,16 @@ typedef struct rrow {
} rrow;
typedef struct fa {
uschar gototab[NSTATES][NCHARS];
uschar out[NSTATES];
unsigned int **gototab;
uschar *out;
uschar *restr;
int *posns[NSTATES];
int **posns;
int state_count;
int anchor;
int use;
int initstat;
int curstat;
int accept;
int reset;
struct rrow re[1]; /* variable: actual size set by calling malloc */
} fa;

30
commands/awk/awkgram.y → external/historical/nawk/dist/awkgram.y vendored
View File

@ -23,6 +23,10 @@ THIS SOFTWARE.
****************************************************************/
%{
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <stdio.h>
#include <string.h>
#include "awk.h"
@ -71,6 +75,7 @@ Node *arglist = 0; /* list of args for current function */
%type <i> do st
%type <i> pst opt_pst lbrace rbrace rparen comma nl opt_nl and bor
%type <i> subop print
%type <cp> string
%right ASGNOP
%right '?'
@ -80,7 +85,7 @@ Node *arglist = 0; /* list of args for current function */
%left GETLINE
%nonassoc APPEND EQ GE GT LE LT NE MATCHOP IN '|'
%left ARG BLTIN BREAK CALL CLOSE CONTINUE DELETE DO EXIT FOR FUNC
%left GSUB IF INDEX LSUBSTR MATCHFCN NEXT NUMBER
%left GENSUB GSUB IF INDEX LSUBSTR MATCHFCN NEXT NUMBER
%left PRINT PRINTF RETURN SPLIT SPRINTF STRING SUB SUBSTR
%left REGEXPR VAR VARNF IVAR WHILE '('
%left CAT
@ -348,6 +353,11 @@ subop:
SUB | GSUB
;
string:
STRING
| string STRING { $$ = catstr($1, $2); }
;
term:
term '/' ASGNOP term { $$ = op2(DIVEQ, $1, $4); }
| term '+' term { $$ = op2(ADD, $1, $3); }
@ -369,6 +379,22 @@ term:
| INCR var { $$ = op1(PREINCR, $2); }
| var DECR { $$ = op1(POSTDECR, $1); }
| var INCR { $$ = op1(POSTINCR, $1); }
| GENSUB '(' reg_expr comma pattern comma pattern ')'
{ $$ = op5(GENSUB, NIL, (Node*)makedfa($3, 1), $5, $7, rectonode()); }
| GENSUB '(' pattern comma pattern comma pattern ')'
{ if (constnode($3))
$$ = op5(GENSUB, NIL, (Node *)makedfa(strnode($3), 1), $5, $7, rectonode());
else
$$ = op5(GENSUB, (Node *)1, $3, $5, $7, rectonode());
}
| GENSUB '(' reg_expr comma pattern comma pattern comma pattern ')'
{ $$ = op5(GENSUB, NIL, (Node*)makedfa($3, 1), $5, $7, $9); }
| GENSUB '(' pattern comma pattern comma pattern comma pattern ')'
{ if (constnode($3))
$$ = op5(GENSUB, NIL, (Node *)makedfa(strnode($3),1), $5,$7,$9);
else
$$ = op5(GENSUB, (Node *)1, $3, $5, $7, $9);
}
| GETLINE var LT term { $$ = op3(GETLINE, $2, itonp($3), $4); }
| GETLINE LT term { $$ = op3(GETLINE, NIL, itonp($2), $3); }
| GETLINE var { $$ = op3(GETLINE, $2, NIL, NIL); }
@ -394,7 +420,7 @@ term:
| SPLIT '(' pattern comma varname ')'
{ $$ = op4(SPLIT, $3, makearr($5), NIL, (Node*)STRING); } /* default */
| SPRINTF '(' patlist ')' { $$ = op1($1, $3); }
| STRING { $$ = celltonode($1, CCON); }
| string { $$ = celltonode($1, CCON); }
| subop '(' reg_expr comma pattern ')'
{ $$ = op4($1, NIL, (Node*)makedfa($3, 1), $5, rectonode()); }
| subop '(' pattern comma pattern ')'

383
commands/awk/b.c → external/historical/nawk/dist/b.c vendored
View File

@ -24,12 +24,17 @@ THIS SOFTWARE.
/* lasciate ogne speranza, voi ch'intrate. */
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#define DEBUG
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include "awk.h"
#include "awkgram.h"
@ -62,33 +67,80 @@ int maxsetvec = 0;
int rtok; /* next token in current re */
int rlxval;
static uschar *rlxstr;
static uschar *prestr; /* current position in current re */
static uschar *lastre; /* origin of last re */
static const uschar *rlxstr;
static const uschar *prestr; /* current position in current re */
static const uschar *lastre; /* origin of last re */
static int setcnt;
static int poscnt;
char *patbeg;
uschar *patbeg;
int patlen;
#define NFA 20 /* cache this many dynamic fa's */
#define NFA 128 /* cache this many dynamic fa's */
fa *fatab[NFA];
int nfatab = 0; /* entries in fatab */
static void
resizesetvec(const char *msg)
{
if (maxsetvec == 0)
maxsetvec = MAXLIN;
else
maxsetvec *= 4;
setvec = realloc(setvec, maxsetvec * sizeof(*setvec));
tmpset = realloc(tmpset, maxsetvec * sizeof(*tmpset));
if (setvec == 0 || tmpset == 0)
overflo(msg);
}
static void
resize_state(fa *f, int state)
{
void *p;
int i, new_count;
if (++state < f->state_count)
return;
new_count = state + 10; /* needs to be tuned */
p = realloc(f->gototab, new_count * sizeof(f->gototab[0]));
if (p == NULL)
goto out;
f->gototab = p;
p = realloc(f->out, new_count * sizeof(f->out[0]));
if (p == NULL)
goto out;
f->out = p;
p = realloc(f->posns, new_count * sizeof(f->posns[0]));
if (p == NULL)
goto out;
f->posns = p;
for (i = f->state_count; i < new_count; ++i) {
f->gototab[i] = calloc(1, NCHARS * sizeof (**f->gototab));
if (f->gototab[i] == NULL)
goto out;
f->out[i] = 0;
f->posns[i] = NULL;
}
f->state_count = new_count;
return;
out:
overflo("out of memory in resize_state");
}
fa *makedfa(const char *s, int anchor) /* returns dfa for reg expr s */
{
int i, use, nuse;
fa *pfa;
static int now = 1;
if (setvec == 0) { /* first time through any RE */
maxsetvec = MAXLIN;
setvec = (int *) malloc(maxsetvec * sizeof(int));
tmpset = (int *) malloc(maxsetvec * sizeof(int));
if (setvec == 0 || tmpset == 0)
overflo("out of space initializing makedfa");
}
if (setvec == 0) /* first time through any RE */
resizesetvec("out of space initializing makedfa");
if (compile_time) /* a constant for sure */
return mkdfa(s, anchor);
@ -132,14 +184,15 @@ fa *mkdfa(const char *s, int anchor) /* does the real work of making a dfa */
poscnt = 0;
penter(p1); /* enter parent pointers and leaf indices */
if ((f = (fa *) calloc(1, sizeof(fa) + poscnt*sizeof(rrow))) == NULL)
if ((f = calloc(1, sizeof(*f) + poscnt*sizeof(rrow))) == NULL)
overflo("out of space for fa");
f->accept = poscnt-1; /* penter has computed number of positions in re */
cfoll(f, p1); /* set up follow sets */
freetr(p1);
if ((f->posns[0] = (int *) calloc(1, *(f->re[0].lfollow)*sizeof(int))) == NULL)
resize_state(f, 1);
if ((f->posns[0] = calloc(1, *(f->re[0].lfollow)*sizeof(int))) == NULL)
overflo("out of space in makedfa");
if ((f->posns[1] = (int *) calloc(1, sizeof(int))) == NULL)
if ((f->posns[1] = calloc(1, sizeof(int))) == NULL)
overflo("out of space in makedfa");
*f->posns[1] = 0;
f->initstat = makeinit(f, anchor);
@ -152,12 +205,12 @@ int makeinit(fa *f, int anchor)
{
int i, k;
resize_state(f, 2);
f->curstat = 2;
f->out[2] = 0;
f->reset = 0;
k = *(f->re[0].lfollow);
xfree(f->posns[2]);
if ((f->posns[2] = (int *) calloc(1, (k+1)*sizeof(int))) == NULL)
if ((f->posns[2] = calloc(1, (k+1)*sizeof(int))) == NULL)
overflo("out of space in makeinit");
for (i=0; i <= k; i++) {
(f->posns[2])[i] = (f->re[0].lfollow)[i];
@ -174,8 +227,10 @@ int makeinit(fa *f, int anchor)
}
f->out[0] = f->out[2];
if (f->curstat != 2)
if (f->curstat != 2) {
resize_state(f, f->curstat);
--(*f->posns[f->curstat]);
}
}
return f->curstat;
}
@ -231,13 +286,13 @@ void freetr(Node *p) /* free parse tree */
/* in the parsing of regular expressions, metacharacters like . have */
/* to be seen literally; \056 is not a metacharacter. */
int hexstr(char **pp) /* find and eval hex string at pp, return new p */
int hexstr(const uschar **pp) /* find and eval hex string at pp, return new p */
{ /* only pick up one 8-bit byte (2 chars) */
uschar *p;
const uschar *p;
int n = 0;
int i;
for (i = 0, p = (uschar *) *pp; i < 2 && isxdigit(*p); i++, p++) {
for (i = 0, p = *pp; i < 2 && isxdigit(*p); i++, p++) {
if (isdigit(*p))
n = 16 * n + *p - '0';
else if (*p >= 'a' && *p <= 'f')
@ -245,16 +300,16 @@ int hexstr(char **pp) /* find and eval hex string at pp, return new p */
else if (*p >= 'A' && *p <= 'F')
n = 16 * n + *p - 'A' + 10;
}
*pp = (char *) p;
*pp = p;
return n;
}
#define isoctdigit(c) ((c) >= '0' && (c) <= '7') /* multiple use of arg */
int quoted(char **pp) /* pick up next thing after a \\ */
int quoted(const uschar **pp) /* pick up next thing after a \\ */
/* and increment *pp */
{
char *p = *pp;
const uschar *p = *pp;
int c;
if ((c = *p++) == 't')
@ -288,31 +343,32 @@ int quoted(char **pp) /* pick up next thing after a \\ */
char *cclenter(const char *argp) /* add a character class */
{
int i, c, c2;
uschar *p = (uschar *) argp;
uschar *op, *bp;
const uschar *p = (const uschar *) argp;
const uschar *op;
uschar *bp;
static uschar *buf = 0;
static int bufsz = 100;
op = p;
if (buf == 0 && (buf = (uschar *) malloc(bufsz)) == NULL)
if (buf == 0 && (buf = malloc(bufsz)) == NULL)
FATAL("out of space for character class [%.10s...] 1", p);
bp = buf;
for (i = 0; (c = *p++) != 0; ) {
if (c == '\\') {
c = quoted((char **) &p);
c = quoted(&p);
} else if (c == '-' && i > 0 && bp[-1] != 0) {
if (*p != 0) {
c = bp[-1];
c2 = *p++;
if (c2 == '\\')
c2 = quoted((char **) &p);
c2 = quoted(&p);
if (c > c2) { /* empty; ignore */
bp--;
i--;
continue;
}
while (c < c2) {
if (!adjbuf((char **) &buf, &bufsz, bp-buf+2, 100, (char **) &bp, "cclenter1"))
if (!adjbuf(&buf, &bufsz, bp-buf+2, 100, &bp, "cclenter1"))
FATAL("out of space for character class [%.10s...] 2", p);
*bp++ = ++c;
i++;
@ -320,14 +376,14 @@ char *cclenter(const char *argp) /* add a character class */
continue;
}
}
if (!adjbuf((char **) &buf, &bufsz, bp-buf+2, 100, (char **) &bp, "cclenter2"))
if (!adjbuf(&buf, &bufsz, bp-buf+2, 100, &bp, "cclenter2"))
FATAL("out of space for character class [%.10s...] 3", p);
*bp++ = c;
i++;
}
*bp = 0;
dprintf( ("cclenter: in = |%s|, out = |%s|\n", op, buf) );
xfree(op);
free(__UNCONST(op));
return (char *) tostring((char *) buf);
}
@ -346,18 +402,13 @@ void cfoll(fa *f, Node *v) /* enter follow set of each leaf of vertex v into lfo
LEAF
f->re[info(v)].ltype = type(v);
f->re[info(v)].lval.np = right(v);
while (f->accept >= maxsetvec) { /* guessing here! */
maxsetvec *= 4;
setvec = (int *) realloc(setvec, maxsetvec * sizeof(int));
tmpset = (int *) realloc(tmpset, maxsetvec * sizeof(int));
if (setvec == 0 || tmpset == 0)
overflo("out of space in cfoll()");
}
while (f->accept >= maxsetvec) /* guessing here! */
resizesetvec("out of space in cfoll()");
for (i = 0; i <= f->accept; i++)
setvec[i] = 0;
setcnt = 0;
follow(v); /* computes setvec and setcnt */
if ((p = (int *) calloc(1, (setcnt+1)*sizeof(int))) == NULL)
if ((p = calloc(1, (setcnt+1)*sizeof(int))) == NULL)
overflo("out of space building follow set");
f->re[info(v)].lfollow = p;
*p = setcnt;
@ -378,7 +429,7 @@ void cfoll(fa *f, Node *v) /* enter follow set of each leaf of vertex v into lfo
}
}
int first(const Node *p) /* collects initially active leaves of p into setvec */
int first(Node *p) /* collects initially active leaves of p into setvec */
/* returns 0 if p matches empty string */
{
int b, lp;
@ -387,13 +438,8 @@ int first(const Node *p) /* collects initially active leaves of p into setvec */
ELEAF
LEAF
lp = info(p); /* look for high-water mark of subscripts */
while (setcnt >= maxsetvec || lp >= maxsetvec) { /* guessing here! */
maxsetvec *= 4;
setvec = (int *) realloc(setvec, maxsetvec * sizeof(int));
tmpset = (int *) realloc(tmpset, maxsetvec * sizeof(int));
if (setvec == 0 || tmpset == 0)
overflo("out of space in first()");
}
while (setcnt >= maxsetvec || lp >= maxsetvec) /* guessing here! */
resizesetvec("out of space in first()");
if (type(p) == EMPTYRE) {
setvec[lp] = 0;
return(0);
@ -457,7 +503,7 @@ void follow(Node *v) /* collects leaves that can follow v into setvec */
int member(int c, const char *sarg) /* is c in s? */
{
uschar *s = (uschar *) sarg;
const uschar *s = (const uschar *) sarg;
while (*s)
if (c == *s++)
@ -468,9 +514,11 @@ int member(int c, const char *sarg) /* is c in s? */
int match(fa *f, const char *p0) /* shortest match ? */
{
int s, ns;
uschar *p = (uschar *) p0;
const uschar *p = (const uschar *) p0;
s = f->initstat;
assert (s < f->state_count);
s = f->reset ? makeinit(f,0) : f->initstat;
if (f->out[s])
return(1);
do {
@ -479,6 +527,9 @@ int match(fa *f, const char *p0) /* shortest match ? */
s = ns;
else
s = cgoto(f, s, *p);
assert (s < f->state_count);
if (f->out[s])
return(1);
} while (*p++ != 0);
@ -488,17 +539,12 @@ int match(fa *f, const char *p0) /* shortest match ? */
int pmatch(fa *f, const char *p0) /* longest match, for sub */
{
int s, ns;
uschar *p = (uschar *) p0;
uschar *p = __UNCONST(p0);
uschar *q;
int i, k;
/* s = f->reset ? makeinit(f,1) : f->initstat; */
if (f->reset) {
f->initstat = s = makeinit(f,1);
} else {
s = f->initstat;
}
patbeg = (char *) p;
s = f->initstat;
assert(s < f->state_count);
patbeg = p;
patlen = -1;
do {
q = p;
@ -510,9 +556,12 @@ int pmatch(fa *f, const char *p0) /* longest match, for sub */
s = ns;
else
s = cgoto(f, s, *q);
assert(s < f->state_count);
if (s == 1) { /* no transition */
if (patlen >= 0) {
patbeg = (char *) p;
patbeg = p;
return(1);
}
else
@ -522,24 +571,11 @@ int pmatch(fa *f, const char *p0) /* longest match, for sub */
if (f->out[s])
patlen = q-p-1; /* don't count $ */
if (patlen >= 0) {
patbeg = (char *) p;
patbeg = p;
return(1);
}
nextin:
s = 2;
if (f->reset) {
for (i = 2; i <= f->curstat; i++)
xfree(f->posns[i]);
k = *f->posns[0];
if ((f->posns[2] = (int *) calloc(1, (k+1)*sizeof(int))) == NULL)
overflo("out of space in pmatch");
for (i = 0; i <= k; i++)
(f->posns[2])[i] = (f->posns[0])[i];
f->initstat = f->curstat = 2;
f->out[2] = f->out[0];
for (i = 0; i < NCHARS; i++)
f->gototab[2][i] = 0;
}
} while (*p++ != 0);
return (0);
}
@ -547,16 +583,12 @@ int pmatch(fa *f, const char *p0) /* longest match, for sub */
int nematch(fa *f, const char *p0) /* non-empty match, for sub */
{
int s, ns;
uschar *p = (uschar *) p0;
uschar *p = __UNCONST(p0);
uschar *q;
int i, k;
/* s = f->reset ? makeinit(f,1) : f->initstat; */
if (f->reset) {
f->initstat = s = makeinit(f,1);
} else {
s = f->initstat;
}
s = f->initstat;
assert(s < f->state_count);
patlen = -1;
while (*p) {
q = p;
@ -568,9 +600,12 @@ int nematch(fa *f, const char *p0) /* non-empty match, for sub */
s = ns;
else
s = cgoto(f, s, *q);
assert(s < f->state_count);
if (s == 1) { /* no transition */
if (patlen > 0) {
patbeg = (char *) p;
patbeg = p;
return(1);
} else
goto nnextin; /* no nonempty match */
@ -579,35 +614,112 @@ int nematch(fa *f, const char *p0) /* non-empty match, for sub */
if (f->out[s])
patlen = q-p-1; /* don't count $ */
if (patlen > 0 ) {
patbeg = (char *) p;
patbeg = p;
return(1);
}
nnextin:
s = 2;
if (f->reset) {
for (i = 2; i <= f->curstat; i++)
xfree(f->posns[i]);
k = *f->posns[0];
if ((f->posns[2] = (int *) calloc(1, (k+1)*sizeof(int))) == NULL)
overflo("out of state space");
for (i = 0; i <= k; i++)
(f->posns[2])[i] = (f->posns[0])[i];
f->initstat = f->curstat = 2;
f->out[2] = f->out[0];
for (i = 0; i < NCHARS; i++)
f->gototab[2][i] = 0;
}
p++;
}
return (0);
}
/*
* NAME
* fnematch
*
* DESCRIPTION
* A stream-fed version of nematch which transfers characters to a
* null-terminated buffer. All characters up to and including the last
* character of the matching text or EOF are placed in the buffer. If
* a match is found, patbeg and patlen are set appropriately.
*
* RETURN VALUES
* 0 No match found.
* 1 Match found.
*/
int fnematch(fa *pfa, FILE *f, uschar **pbuf, int *pbufsize, int quantum)
{
uschar *buf = *pbuf;
int bufsize = *pbufsize;
int c, i, j, k, ns, s;
s = pfa->initstat;
assert(s < pfa->state_count);
patlen = 0;
/*
* All indices relative to buf.
* i <= j <= k <= bufsize
*
* i: origin of active substring
* j: current character
* k: destination of next getc()
*/
i = -1, k = 0;
do {
j = i++;
do {
if (++j == k) {
if (k == bufsize)
if (!adjbuf(&buf, &bufsize, bufsize+1, quantum, 0, "fnematch"))
FATAL("stream '%.30s...' too long", buf);
buf[k++] = (c = getc(f)) != EOF ? c : 0;
}
c = buf[j];
/* assert(c < NCHARS); */
if ((ns = pfa->gototab[s][c]) != 0)
s = ns;
else
s = cgoto(pfa, s, c);
assert(s < pfa->state_count);
if (pfa->out[s]) { /* final state */
patlen = j - i + 1;
if (c == 0) /* don't count $ */
patlen--;
}
} while (buf[j] && s != 1);
s = 2;
} while (buf[i] && !patlen);
/* adjbuf() may have relocated a resized buffer. Inform the world. */
*pbuf = buf;
*pbufsize = bufsize;
if (patlen) {
patbeg = buf + i;
/*
* Under no circumstances is the last character fed to
* the automaton part of the match. It is EOF's nullbyte,
* or it sent the automaton into a state with no further
* transitions available (s==1), or both. Room for a
* terminating nullbyte is guaranteed.
*
* ungetc any chars after the end of matching text
* (except for EOF's nullbyte, if present) and null
* terminate the buffer.
*/
do
if (buf[--k] && ungetc(buf[k], f) == EOF)
FATAL("unable to ungetc '%c'", buf[k]);
while (k > i + patlen);
buf[k] = 0;
return 1;
}
else
return 0;
}
Node *reparse(const char *p) /* parses regular expression pointed to by p */
{ /* uses relex() to scan regular expression */
Node *np;
dprintf( ("reparse <%s>\n", p) );
lastre = prestr = (uschar *) p; /* prestr points to string to be parsed */
lastre = prestr = (const uschar *) p; /* prestr points to string to be parsed */
rtok = relex();
/* GNU compatibility: an empty regexp matches anything */
if (rtok == '\0') {
@ -644,11 +756,11 @@ Node *primary(void)
rtok = relex();
return (unary(op2(DOT, NIL, NIL)));
case CCL:
np = op2(CCL, NIL, (Node*) cclenter((char *) rlxstr));
np = op2(CCL, NIL, (Node*) cclenter((const char *) rlxstr));
rtok = relex();
return (unary(np));
case NCCL:
np = op2(NCCL, NIL, (Node *) cclenter((char *) rlxstr));
np = op2(NCCL, NIL, (Node *) cclenter((const char *) rlxstr));
rtok = relex();
return (unary(np));
case '^':
@ -732,23 +844,15 @@ Node *unary(Node *np)
*/
/* #define HAS_ISBLANK */
#ifndef HAS_ISBLANK
int (xisblank)(int c)
{
return c==' ' || c=='\t';
}
#endif
struct charclass {
static const struct charclass {
const char *cc_name;
int cc_namelen;
int (*cc_func)(int);
} charclasses[] = {
{ "alnum", 5, isalnum },
{ "alpha", 5, isalpha },
{ "blank", 5, isspace }, /* was isblank */
{ "blank", 5, isblank },
{ "cntrl", 5, iscntrl },
{ "digit", 5, isdigit },
{ "graph", 5, isgraph },
@ -769,7 +873,7 @@ int relex(void) /* lexical analyzer for reparse */
static uschar *buf = 0;
static int bufsz = 100;
uschar *bp;
struct charclass *cc;
const struct charclass *cc;
int i;
switch (c = *prestr++) {
@ -785,13 +889,13 @@ int relex(void) /* lexical analyzer for reparse */
case ')':
return c;
case '\\':
rlxval = quoted((char **) &prestr);
rlxval = quoted(&prestr);
return CHAR;
default:
rlxval = c;
return CHAR;
case '[':
if (buf == 0 && (buf = (uschar *) malloc(bufsz)) == NULL)
if (buf == 0 && (buf = malloc(bufsz)) == NULL)
FATAL("out of space in reg expr %.10s..", lastre);
bp = buf;
if (*prestr == '^') {
@ -801,7 +905,7 @@ int relex(void) /* lexical analyzer for reparse */
else
cflag = 0;
n = 2 * strlen((const char *) prestr)+1;
if (!adjbuf((char **) &buf, &bufsz, n, n, (char **) &bp, "relex1"))
if (!adjbuf(&buf, &bufsz, n, n, &bp, "relex1"))
FATAL("out of space for reg expr %.10s...", lastre);
for (; ; ) {
if ((c = *prestr++) == '\\') {
@ -819,8 +923,8 @@ int relex(void) /* lexical analyzer for reparse */
if (cc->cc_name != NULL && prestr[1 + cc->cc_namelen] == ':' &&
prestr[2 + cc->cc_namelen] == ']') {
prestr += cc->cc_namelen + 3;
for (i = 0; i < NCHARS; i++) {
if (!adjbuf((char **) &buf, &bufsz, bp-buf+1, 100, (char **) &bp, "relex2"))
for (i = 1; i < NCHARS; i++) {
if (!adjbuf(&buf, &bufsz, bp-buf+1, 100, &bp, "relex2"))
FATAL("out of space for reg expr %.10s...", lastre);
if (cc->cc_func(i)) {
*bp++ = i;
@ -852,16 +956,12 @@ int cgoto(fa *f, int s, int c)
int *p, *q;
assert(c == HAT || c < NCHARS);
while (f->accept >= maxsetvec) { /* guessing here! */
maxsetvec *= 4;
setvec = (int *) realloc(setvec, maxsetvec * sizeof(int));
tmpset = (int *) realloc(tmpset, maxsetvec * sizeof(int));
if (setvec == 0 || tmpset == 0)
overflo("out of space in cgoto()");
}
while (f->accept >= maxsetvec) /* guessing here! */
resizesetvec("out of space in cgoto()");
for (i = 0; i <= f->accept; i++)
setvec[i] = 0;
setcnt = 0;
resize_state(f, s);
/* compute positions of gototab[s,c] into setvec */
p = f->posns[s];
for (i = 1; i <= *p; i++) {
@ -874,13 +974,8 @@ int cgoto(fa *f, int s, int c)
|| (k == NCCL && !member(c, (char *) f->re[p[i]].lval.up) && c != 0 && c != HAT)) {
q = f->re[p[i]].lfollow;
for (j = 1; j <= *q; j++) {
if (q[j] >= maxsetvec) {
maxsetvec *= 4;
setvec = (int *) realloc(setvec, maxsetvec * sizeof(int));
tmpset = (int *) realloc(tmpset, maxsetvec * sizeof(int));
if (setvec == 0 || tmpset == 0)
overflo("cgoto overflow");
}
if (q[j] >= maxsetvec)
resizesetvec("cgoto overflow");
if (setvec[q[j]] == 0) {
setcnt++;
setvec[q[j]] = 1;
@ -896,6 +991,8 @@ int cgoto(fa *f, int s, int c)
if (setvec[i]) {
tmpset[j++] = i;
}
resize_state(f, f->curstat > s ? f->curstat : s);
/* tmpset == previous state? */
for (i = 1; i <= f->curstat; i++) {
p = f->posns[i];
@ -905,27 +1002,24 @@ int cgoto(fa *f, int s, int c)
if (tmpset[j] != p[j])
goto different;
/* setvec is state i */
f->gototab[s][c] = i;
if (c != HAT)
f->gototab[s][c] = i;
return i;
different:;
}
/* add tmpset to current set of states */
if (f->curstat >= NSTATES-1) {
f->curstat = 2;
f->reset = 1;
for (i = 2; i < NSTATES; i++)
xfree(f->posns[i]);
} else
++(f->curstat);
++(f->curstat);
resize_state(f, f->curstat);
for (i = 0; i < NCHARS; i++)
f->gototab[f->curstat][i] = 0;
xfree(f->posns[f->curstat]);
if ((p = (int *) calloc(1, (setcnt+1)*sizeof(int))) == NULL)
if ((p = calloc(1, (setcnt+1)*sizeof(int))) == NULL)
overflo("out of space in cgoto");
f->posns[f->curstat] = p;
f->gototab[s][c] = f->curstat;
if (c != HAT)
f->gototab[s][c] = f->curstat;
for (i = 0; i <= setcnt; i++)
p[i] = tmpset[i];
if (setvec[f->accept])
@ -942,13 +1036,18 @@ void freefa(fa *f) /* free a finite automaton */
if (f == NULL)
return;
for (i = 0; i <= f->curstat; i++)
for (i = 0; i < f->state_count; i++) {
xfree(f->gototab[i])
xfree(f->posns[i]);
}
for (i = 0; i <= f->accept; i++) {
xfree(f->re[i].lfollow);
if (f->re[i].ltype == CCL || f->re[i].ltype == NCCL)
xfree((f->re[i].lval.np));
}
xfree(f->restr);
xfree(f->out);
xfree(f->posns);
xfree(f->gototab);
xfree(f);
}

40
commands/awk/lex.c → external/historical/nawk/dist/lex.c vendored
View File

@ -22,6 +22,10 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -43,7 +47,11 @@ typedef struct Keyword {
int type;
} Keyword;
Keyword keywords[] ={ /* keep sorted: binary searched */
int peek(void);
int gettok(char **, int *);
int binsearch(const char *, const Keyword *, int);
const Keyword keywords[] ={ /* keep sorted: binary searched */
{ "BEGIN", XBEGIN, XBEGIN },
{ "END", XEND, XEND },
{ "NF", VARNF, VARNF },
@ -61,6 +69,7 @@ Keyword keywords[] ={ /* keep sorted: binary searched */
{ "for", FOR, FOR },
{ "func", FUNC, FUNC },
{ "function", FUNC, FUNC },
{ "gensub", GENSUB, GENSUB },
{ "getline", GETLINE, GETLINE },
{ "gsub", GSUB, GSUB },
{ "if", IF, IF },
@ -81,9 +90,11 @@ Keyword keywords[] ={ /* keep sorted: binary searched */
{ "sprintf", SPRINTF, SPRINTF },
{ "sqrt", FSQRT, BLTIN },
{ "srand", FSRAND, BLTIN },
{ "strftime", FSTRFTIME, BLTIN },
{ "sub", SUB, SUB },
{ "substr", SUBSTR, SUBSTR },
{ "system", FSYSTEM, BLTIN },
{ "systime", FSYSTIME, BLTIN },
{ "tolower", FTOLOWER, BLTIN },
{ "toupper", FTOUPPER, BLTIN },
{ "while", WHILE, WHILE },
@ -101,9 +112,9 @@ int peek(void)
int gettok(char **pbuf, int *psz) /* get next input token */
{
int c, retc;
char *buf = *pbuf;
uschar *buf = (uschar *) *pbuf;
int sz = *psz;
char *bp = buf;
uschar *bp = buf;
c = input();
if (c == 0)
@ -146,7 +157,7 @@ int gettok(char **pbuf, int *psz) /* get next input token */
}
*bp = 0;
strtod(buf, &rem); /* parse the number */
if (rem == buf) { /* it wasn't a valid number at all */
if (rem == (char *)buf) { /* it wasn't a valid number at all */
buf[1] = 0; /* return one character as token */
retc = buf[0]; /* character is its own type */
unputstr(rem+1); /* put rest back for later */
@ -173,7 +184,7 @@ int yylex(void)
static char *buf = 0;
static int bufsize = 5; /* BUG: setting this small causes core dump! */
if (buf == 0 && (buf = (char *) malloc(bufsize)) == NULL)
if (buf == 0 && (buf = malloc(bufsize)) == NULL)
FATAL( "out of space in yylex" );
if (sc) {
sc = 0;
@ -357,11 +368,11 @@ int yylex(void)
int string(void)
{
int c, n;
char *s, *bp;
static char *buf = 0;
uschar *s, *bp;
static uschar *buf = 0;
static int bufsz = 500;
if (buf == 0 && (buf = (char *) malloc(bufsz)) == NULL)
if (buf == 0 && (buf = malloc(bufsz)) == NULL)
FATAL("out of space for strings");
for (bp = buf; (c = input()) != '"'; ) {
if (!adjbuf(&buf, &bufsz, bp-buf+2, 500, &bp, "string"))
@ -378,6 +389,7 @@ int string(void)
case '\\':
c = input();
switch (c) {
case '\n': break;
case '"': *bp++ = '"'; break;
case 'n': *bp++ = '\n'; break;
case 't': *bp++ = '\t'; break;
@ -416,7 +428,9 @@ int string(void)
break;
}
default:
default:
WARNING("warning: escape sequence `\\%c' "
"treated as plain `%c'", c, c);
*bp++ = c;
break;
}
@ -454,7 +468,7 @@ int binsearch(const char *w, const Keyword *kp, int n)
int word(char *w)
{
Keyword *kp;
const Keyword *kp;
int c, n;
n = binsearch(w, keywords, sizeof(keywords)/sizeof(keywords[0]));
@ -504,11 +518,11 @@ void startreg(void) /* next call to yylex will return a regular expression */
int regexpr(void)
{
int c;
static char *buf = 0;
static uschar *buf = 0;
static int bufsz = 500;
char *bp;
uschar *bp;
if (buf == 0 && (buf = (char *) malloc(bufsz)) == NULL)
if (buf == 0 && (buf = malloc(bufsz)) == NULL)
FATAL("out of space for rex expr");
bp = buf;
for ( ; (c = input()) != '/' && c != 0; ) {

188
commands/awk/lib.c → external/historical/nawk/dist/lib.c vendored
View File

@ -22,6 +22,10 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#define DEBUG
#include <stdio.h>
#include <string.h>
@ -32,15 +36,19 @@ THIS SOFTWARE.
#include "awk.h"
#include "awkgram.h"
char EMPTY[] = { '\0' };
FILE *infile = NULL;
char *file = "";
char *record;
int innew; /* 1 = infile has not been read by readrec */
char *file = EMPTY;
uschar *record;
int recsize = RECSIZE;
char *fields;
int fieldssize = RECSIZE;
Cell **fldtab; /* pointers to Cells */
char inputFS[100] = " ";
static size_t len_inputFS = 0;
static char *inputFS = NULL;
#define MAXFLD 2
int nfields = MAXFLD; /* last allocated slot for $i */
@ -52,15 +60,15 @@ int lastfld = 0; /* last used field */
int argno = 1; /* current input argument number */
extern Awkfloat *ARGC;
static Cell dollar0 = { OCELL, CFLD, NULL, "", 0.0, REC|STR|DONTFREE };
static Cell dollar1 = { OCELL, CFLD, NULL, "", 0.0, FLD|STR|DONTFREE };
static Cell dollar0 = { OCELL, CFLD, NULL, EMPTY, 0.0, REC|STR|DONTFREE, NULL };
static Cell dollar1 = { OCELL, CFLD, NULL, EMPTY, 0.0, FLD|STR|DONTFREE, NULL };
void recinit(unsigned int n)
{
if ( (record = (char *) malloc(n)) == NULL
|| (fields = (char *) malloc(n+1)) == NULL
|| (fldtab = (Cell **) malloc((nfields+1) * sizeof(Cell *))) == NULL
|| (fldtab[0] = (Cell *) malloc(sizeof(Cell))) == NULL )
if ( (record = malloc(n)) == NULL
|| (fields = malloc(n+1)) == NULL
|| (fldtab = malloc((nfields+1) * sizeof(*fldtab))) == NULL
|| (fldtab[0] = malloc(sizeof(**fldtab))) == NULL )
FATAL("out of space for $0 and fields");
*fldtab[0] = dollar0;
fldtab[0]->sval = record;
@ -74,11 +82,11 @@ void makefields(int n1, int n2) /* create $n1..$n2 inclusive */
int i;
for (i = n1; i <= n2; i++) {
fldtab[i] = (Cell *) malloc(sizeof (struct Cell));
fldtab[i] = malloc(sizeof(**fldtab));
if (fldtab[i] == NULL)
FATAL("out of space in makefields %d", i);
*fldtab[i] = dollar1;
sprintf(temp, "%d", i);
snprintf(temp, sizeof(temp), "%d", i);
fldtab[i]->nval = tostring(temp);
}
}
@ -97,14 +105,15 @@ void initgetrec(void)
argno++;
}
infile = stdin; /* no filenames, so use stdin */
innew = 1;
}
static int firsttime = 1;
int getrec(char **pbuf, int *pbufsize, int isrecord) /* get next input record */
int getrec(uschar **pbuf, int *pbufsize, int isrecord) /* get next input record */
{ /* note: cares whether buf == record */
int c;
char *buf = *pbuf;
uschar *buf = *pbuf;
uschar saveb0;
int bufsize = *pbufsize, savebufsize = bufsize;
@ -139,9 +148,12 @@ int getrec(char **pbuf, int *pbufsize, int isrecord) /* get next input record */
infile = stdin;
else if ((infile = fopen(file, "r")) == NULL)
FATAL("can't open file %s", file);
innew = 1;
setfval(fnrloc, 0.0);
}
c = readrec(&buf, &bufsize, infile);
c = readrec(&buf, &bufsize, infile, innew);
if (innew)
innew = 0;
if (c != 0 || buf[0] != '\0') { /* normal record */
if (isrecord) {
if (freeable(fldtab[0]))
@ -179,45 +191,71 @@ void nextfile(void)
argno++;
}
int readrec(char **pbuf, int *pbufsize, FILE *inf) /* read one record into buf */
int readrec(uschar **pbuf, int *pbufsize, FILE *inf, int newflag) /* read one record into buf */
{
int sep, c;
char *rr, *buf = *pbuf;
int sep, c, isrec, found, tempstat;
uschar *rr, *buf = *pbuf;
int bufsize = *pbufsize;
size_t len;
if (strlen(*FS) >= sizeof(inputFS))
FATAL("field separator %.10s... is too long", *FS);
strcpy(inputFS, *FS); /* for subsequent field splitting */
if ((sep = **RS) == 0) {
sep = '\n';
while ((c=getc(inf)) == '\n' && c != EOF) /* skip leading \n's */
;
if (c != EOF)
ungetc(c, inf);
if ((len = strlen(*FS)) < len_inputFS) {
strcpy(inputFS, *FS); /* for subsequent field splitting */
} else {
len_inputFS = len + 1;
inputFS = realloc(inputFS, len_inputFS);
if (inputFS == NULL)
FATAL("field separator %.10s... is too long", *FS);
memcpy(inputFS, *FS, len_inputFS);
}
for (rr = buf; ; ) {
for (; (c=getc(inf)) != sep && c != EOF; ) {
if (rr-buf+1 > bufsize)
if (!adjbuf(&buf, &bufsize, 1+rr-buf, recsize, &rr, "readrec 1"))
FATAL("input record `%.30s...' too long", buf);
if (**RS && (*RS)[1]) {
fa *pfa = makedfa(*RS, 1);
if (newflag)
found = fnematch(pfa, inf, &buf, &bufsize, recsize);
else {
tempstat = pfa->initstat;
pfa->initstat = 2;
found = fnematch(pfa, inf, &buf, &bufsize, recsize);
pfa->initstat = tempstat;
}
if (found)
*patbeg = 0;
} else {
if ((sep = **RS) == 0) {
sep = '\n';
while ((c=getc(inf)) == '\n' && c != EOF) /* skip leading \n's */
;
if (c != EOF)
ungetc(c, inf);
}
for (rr = buf; ; ) {
for (; (c=getc(inf)) != sep && c != EOF; ) {
if (rr-buf+1 > bufsize)
if (!adjbuf(&buf, &bufsize, 1+rr-buf,
recsize, &rr, "readrec 1"))
FATAL("input record `%.30s...'"
" too long", buf);
*rr++ = c;
}
if (**RS == sep || c == EOF)
break;
if ((c = getc(inf)) == '\n' || c == EOF)
/* 2 in a row */
break;
if (!adjbuf(&buf, &bufsize, 2+rr-buf, recsize, &rr,
"readrec 2"))
FATAL("input record `%.30s...' too long", buf);
*rr++ = '\n';
*rr++ = c;
}
if (**RS == sep || c == EOF)
break;
if ((c = getc(inf)) == '\n' || c == EOF) /* 2 in a row */
break;
if (!adjbuf(&buf, &bufsize, 2+rr-buf, recsize, &rr, "readrec 2"))
if (!adjbuf(&buf, &bufsize, 1+rr-buf, recsize, &rr, "readrec 3"))
FATAL("input record `%.30s...' too long", buf);
*rr++ = '\n';
*rr++ = c;
*rr = 0;
}
if (!adjbuf(&buf, &bufsize, 1+rr-buf, recsize, &rr, "readrec 3"))
FATAL("input record `%.30s...' too long", buf);
*rr = 0;
dprintf( ("readrec saw <%s>, returns %d\n", buf, c == EOF && rr == buf ? 0 : 1) );
*pbuf = buf;
*pbufsize = bufsize;
return c == EOF && rr == buf ? 0 : 1;
isrec = *buf || !feof(inf);
dprintf( ("readrec saw <%s>, returns %d\n", buf, isrec) );
return isrec;
}
char *getargv(int n) /* get ARGV[n] */
@ -226,7 +264,7 @@ char *getargv(int n) /* get ARGV[n] */
char *s, temp[50];
extern Array *ARGVtab;
sprintf(temp, "%d", n);
snprintf(temp, sizeof(temp), "%d", n);
x = setsymtab(temp, "", 0.0, STR, ARGVtab);
s = getsval(x);
dprintf( ("getargv(%d) returns |%s|\n", n, s) );
@ -268,14 +306,15 @@ void fldbld(void) /* create fields from current record */
n = strlen(r);
if (n > fieldssize) {
xfree(fields);
if ((fields = (char *) malloc(n+1)) == NULL)
if ((fields = malloc(n+1)) == NULL)
FATAL("out of space for fields in fldbld %d", n);
fieldssize = n;
}
fr = fields;
i = 0; /* number of fields accumulated here */
strcpy(inputFS, *FS);
if (strlen(inputFS) > 1) { /* it's a regular expression */
if (!inputFS) {
/* do nothing */
} else if (inputFS[0] && inputFS[1]) { /* it's a regular expression */
i = refldbld(r, inputFS);
} else if ((sep = *inputFS) == ' ') { /* default whitespace */
for (i = 0; ; ) {
@ -347,6 +386,7 @@ void fldbld(void) /* create fields from current record */
}
}
setfval(nfloc, (Awkfloat) lastfld);
donerec = 1; /* restore */
if (dbg) {
for (j = 0; j <= lastfld; j++) {
p = fldtab[j];
@ -364,7 +404,7 @@ void cleanfld(int n1, int n2) /* clean out fields n1 .. n2 inclusive */
p = fldtab[i];
if (freeable(p))
xfree(p->sval);
p->sval = "";
p->sval = EMPTY;
p->tval = FLD | STR | DONTFREE;
}
}
@ -378,6 +418,19 @@ void newfld(int n) /* add field n after end of existing lastfld */
setfval(nfloc, (Awkfloat) n);
}
void setlastfld(int n) /* set lastfld cleaning fldtab cells if necessary */
{
if (n > nfields)
growfldtab(n);
if (lastfld < n)
cleanfld(lastfld+1, n);
else
cleanfld(n+1, lastfld);
lastfld = n;
}
Cell *fieldadr(int n) /* get nth field */
{
if (n < 0)
@ -395,8 +448,8 @@ void growfldtab(int n) /* make new fields up to at least $n */
if (n > nf)
nf = n;
s = (nf+1) * (sizeof (struct Cell *)); /* freebsd: how much do we need? */
if (s / sizeof(struct Cell *) - 1 == nf) /* didn't overflow */
fldtab = (Cell **) realloc(fldtab, s);
if (s / sizeof(struct Cell *) - 1 == (size_t)nf) /* didn't overflow */
fldtab = realloc(fldtab, s);
else /* overflow sizeof int */
xfree(fldtab); /* make it null */
if (fldtab == NULL)
@ -416,7 +469,7 @@ int refldbld(const char *rec, const char *fs) /* build fields from reg expr in F
n = strlen(rec);
if (n > fieldssize) {
xfree(fields);
if ((fields = (char *) malloc(n+1)) == NULL)
if ((fields = malloc(n+1)) == NULL)
FATAL("out of space for fields in refldbld %d", n);
fieldssize = n;
}
@ -438,8 +491,8 @@ int refldbld(const char *rec, const char *fs) /* build fields from reg expr in F
if (nematch(pfa, rec)) {
pfa->initstat = 2; /* horrible coupling to b.c */
dprintf( ("match %s (%d chars)\n", patbeg, patlen) );
strncpy(fr, rec, patbeg-rec);
fr += patbeg - rec + 1;
strncpy(fr, rec, ((const char*)patbeg)-rec);
fr += ((const char*)patbeg) - rec + 1;
*(fr-1) = '\0';
rec = patbeg + patlen;
} else {
@ -455,7 +508,8 @@ int refldbld(const char *rec, const char *fs) /* build fields from reg expr in F
void recbld(void) /* create $0 from $1..$NF if necessary */
{
int i;
char *r, *p;
uschar *r;
char *p;
if (donerec == 1)
return;
@ -517,11 +571,6 @@ void SYNTAX(const char *fmt, ...)
eprint();
}
void fpecatch(int n)
{
FATAL("floating point exception %d", n);
}
extern int bracecnt, brackcnt, parencnt;
void bracecheck(void)
@ -603,7 +652,6 @@ void error()
void eprint(void) /* try to print context around error */
{
char *p, *q;
int c;
static int been_here = 0;
extern char ebuf[], *ep;
@ -627,11 +675,25 @@ void eprint(void) /* try to print context around error */
if (*p)
putc(*p, stderr);
fprintf(stderr, " <<< ");
if (*ep)
#if 0
/*
* The following code was used to print the rest of the line of
* error context. It naively counts brackets, parens and braces in
* order to minimize the parsing effect of dropping the rest of the
* line but it does not work in all the cases. It is too much work
* to save the current program input point and restore it in all the
* cases just for the benefit of error printing so for now this
* code is disabled. In particular this code is confused if the
* [ { ( ) } ] is inside a quoted string or a pattern.
*/
if (*ep) {
int c;
while ((c = input()) != '\n' && c != '\0' && c != EOF) {
putc(c, stderr);
bclass(c);
}
}
#endif
putc('\n', stderr);
ep = ebuf;
}
@ -686,7 +748,9 @@ int is_number(const char *s)
char *ep;
errno = 0;
r = strtod(s, &ep);
if (ep == s || r == HUGE_VAL || errno == ERANGE)
if (ep == s || errno == ERANGE)
return 0;
if (ep - s >= 3 && strncasecmp(ep - 3, "nan", 3) == 0)
return 0;
while (*ep == ' ' || *ep == '\t' || *ep == '\n')
ep++;

100
commands/awk/main.c → external/historical/nawk/dist/main.c vendored
View File

@ -22,7 +22,11 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
const char *version = "version 20100208";
const char *version = "version 20100523";
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#define DEBUG
#include <stdio.h>
@ -38,6 +42,7 @@ extern char **environ;
extern int nfields;
int dbg = 0;
unsigned int srand_seed;
char *cmdname; /* gets argv[0] for error messages */
extern FILE *yyin; /* lex input file */
char *lexprog; /* points to program argument if it exists */
@ -45,19 +50,59 @@ extern int errorflag; /* non-zero if any syntax errors; set by yyerror */
int compile_time = 2; /* for error printing: */
/* 2 = cmdline, 1 = compile, 0 = running */
#define MAX_PFILE 20 /* max number of -f's */
char *pfile[MAX_PFILE]; /* program filenames from -f's */
int npfile = 0; /* number of filenames */
int curpfile = 0; /* current filename */
static char **pfile = NULL; /* program filenames from -f's */
static size_t maxpfile = 0; /* max program filenames */
static size_t npfile = 0; /* number of filenames */
static size_t curpfile = 0; /* current filename */
int safe = 0; /* 1 => "safe" mode */
static char *
setfs(char *p)
{
#ifdef notdef
/* wart: t=>\t */
if (p[0] == 't' && p[1] == 0)
return "\t";
else
#endif
if (p[0] != 0)
return p;
return NULL;
}
__dead static void fpecatch(int n
#ifdef SA_SIGINFO
, siginfo_t *si, void *uc
#endif
)
{
#ifdef SA_SIGINFO
static const char *emsg[] = {
"Unknown error",
"Integer divide by zero",
"Integer overflow",
"Floating point divide by zero",
"Floating point overflow",
"Floating point underflow",
"Floating point inexact result",
"Invalid Floating point operation",
"Subscript out of range",
};
#endif
FATAL("floating point exception"
#ifdef SA_SIGINFO
": %s\n", emsg[si->si_code >= 1 && si->si_code <= 8 ?
si->si_code : 0]
#endif
);
}
int main(int argc, char *argv[])
{
const char *fs = NULL;
setlocale(LC_CTYPE, "");
setlocale(LC_ALL, "");
setlocale(LC_NUMERIC, "C"); /* for parsing cmdline & prog */
cmdname = argv[0];
if (argc == 1) {
@ -66,7 +111,22 @@ int main(int argc, char *argv[])
cmdname);
exit(1);
}
signal(SIGFPE, fpecatch);
#ifdef SA_SIGINFO
{
struct sigaction sa;
sa.sa_sigaction = fpecatch;
sa.sa_flags = SA_SIGINFO;
sigemptyset(&sa.sa_mask);
(void)sigaction(SIGFPE, &sa, NULL);
}
#else
(void)signal(SIGFPE, fpecatch);
#endif
/* Set and keep track of the random seed */
srand_seed = 1;
srand(srand_seed);
yyin = NULL;
symtab = makesymtab(NSYMTAB/NSYMTAB);
while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') {
@ -90,22 +150,23 @@ int main(int argc, char *argv[])
argv++;
if (argc <= 1)
FATAL("no program filename");
if (npfile >= MAX_PFILE - 1)
FATAL("too many -f options");
if (npfile >= maxpfile) {
maxpfile += 20;
pfile = realloc(pfile,
maxpfile * sizeof(*pfile));
if (pfile == NULL)
FATAL("error allocating space for "
"-f options");
}
pfile[npfile++] = argv[1];
break;
case 'F': /* set field separator */
if (argv[1][2] != 0) { /* arg is -Fsomething */
if (argv[1][2] == 't' && argv[1][3] == 0) /* wart: t=>\t */
fs = "\t";
else if (argv[1][2] != 0)
fs = &argv[1][2];
fs = setfs(argv[1] + 2);
} else { /* arg is -F something */
argc--; argv++;
if (argc > 1 && argv[1][0] == 't' && argv[1][1] == 0) /* wart: t=>\t */
fs = "\t";
else if (argc > 1 && argv[1][0] != 0)
fs = &argv[1][0];
if (argc > 1)
fs = setfs(argv[1]);
}
if (fs == NULL || *fs == '\0')
WARNING("field separator FS is empty");
@ -113,6 +174,8 @@ int main(int argc, char *argv[])
case 'v': /* -v a=1 to be done NOW. one -v for each */
if (argv[1][2] == '\0' && --argc > 1 && isclvar((++argv)[1]))
setclvar(argv[1]);
else if (argv[1][2] != '\0')
setclvar(&argv[1][2]);
break;
case 'd':
dbg = atoi(&argv[1][2]);
@ -148,7 +211,6 @@ int main(int argc, char *argv[])
if (!safe)
envinit(environ);
yyparse();
setlocale(LC_NUMERIC, ""); /* back to whatever it is locally */
if (fs)
*FS = qstring(fs, '\0');
dprintf( ("errorflag=%d\n", errorflag) );

24
commands/awk/Makefile.orig → external/historical/nawk/dist/makefile vendored
View File

@ -26,13 +26,13 @@ CFLAGS = -g
CFLAGS = -O2
CFLAGS =
CC = gcc -Wall -g
CC = /opt/SUNWspro/bin/cc
CC = /opt/pure/purify/purify cc
CC = cc
CC = gcc -Wall -g -Wwrite-strings
CC = gcc -fprofile-arcs -ftest-coverage # then gcov f1.c; cat f1.c.gcov
CC = gcc -Wall -g
CC = cc
CC = gcc -O4
CC = cc -O
YACC = bison -y
YACC = yacc
@ -49,19 +49,13 @@ LISTING = awk.h proto.h awkgram.y lex.c b.c main.c maketab.c parse.c \
SHIP = README FIXES $(SOURCE) ytab[ch].bak makefile makefile.win \
vcvars32.bat buildwin.bat awk.1
all: awk
install: awk awk.1
install -m 755 -o bin -g operator awk /usr/bin/awk
install -m 644 -o bin -g operator awk.1 /usr/man/man1
awk: ytab.o $(OFILES)
$(CC) $(CFLAGS) ytab.o $(OFILES) $(ALLOC) -lm -o $@
a.out: ytab.o $(OFILES)
$(CC) $(CFLAGS) ytab.o $(OFILES) $(ALLOC) -lm
$(OFILES): awk.h ytab.h proto.h
ytab.o ytab.c ytab.h: awk.h proto.h awkgram.y
$(YACC) $(YFLAGS) awkgram.y 2>/dev/null
ytab.o: awk.h proto.h awkgram.y
$(YACC) $(YFLAGS) awkgram.y
mv y.tab.c ytab.c
mv y.tab.h ytab.h
$(CC) $(CFLAGS) -c ytab.c
@ -91,4 +85,4 @@ names:
@echo $(LISTING)
clean:
rm -f awk *.o *.obj maketab maketab.exe *.bb *.bbg *.da *.gcov *.gcno *.gcda # proctab.c
rm -f a.out *.o *.obj maketab maketab.exe ytab.[ch] *.bb *.bbg *.da *.gcov *.gcno *.gcda # proctab.c

24
commands/awk/maketab.c → external/historical/nawk/dist/maketab.c vendored
View File

@ -25,9 +25,13 @@ THIS SOFTWARE.
/*
* this program makes the table to link function names
* and type indices that is used by execute() in run.c.
* it finds the indices in awkgram.h, produced by yacc.
* it finds the indices in ytab.h, produced by yacc.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
@ -103,6 +107,7 @@ struct xx
{ ARG, "arg", "arg" },
{ VARNF, "getnf", "NF" },
{ GETLINE, "awkgetline", "getline" },
{ GENSUB, "gensub", "gensub" },
{ 0, "", "" },
};
@ -128,19 +133,22 @@ int main(int argc, char *argv[])
fprintf(stderr, "maketab can't open awkgram.h!\n");
exit(1);
}
printf("static char *printname[%d] = {\n", SIZE);
printf("static const char * const printname[%d] = {\n", SIZE);
i = 0;
while (fgets(buf, sizeof buf, fp) != NULL) {
n = sscanf(buf, "%1c %s %s %d", &c, def, name, &tok);
n = sscanf(buf, "%1c %199s %199s %d", &c, def, name, &tok);
if (c != '#' || (n != 4 && strcmp(def,"define") != 0)) /* not a valid #define */
continue;
if (tok < FIRSTTOKEN || tok > LASTTOKEN) {
/* fprintf(stderr, "maketab funny token %d %s ignored\n", tok, buf); */
continue;
}
names[tok-FIRSTTOKEN] = (char *) malloc(strlen(name)+1);
strcpy(names[tok-FIRSTTOKEN], name);
printf("\t(char *) \"%s\",\t/* %d */\n", name, tok);
names[tok-FIRSTTOKEN] = strdup(name);
if (names[tok-FIRSTTOKEN] == NULL) {
fprintf(stderr, "maketab out of space copying %s", name);
continue;
}
printf("\t\"%s\",\t/* %d */\n", name, tok);
i++;
}
printf("};\n\n");
@ -155,11 +163,11 @@ int main(int argc, char *argv[])
printf("\t%s,\t/* %s */\n", table[i], names[i]);
printf("};\n\n");
printf("char *tokname(int n)\n"); /* print a tokname() function */
printf("const char *tokname(int n)\n"); /* print a tokname() function */
printf("{\n");
printf(" static char buf[100];\n\n");
printf(" if (n < FIRSTTOKEN || n > LASTTOKEN) {\n");
printf(" sprintf(buf, \"token %%d\", n);\n");
printf(" snprintf(buf, sizeof(buf), \"token %%d\", n);\n");
printf(" return buf;\n");
printf(" }\n");
printf(" return printname[n-FIRSTTOKEN];\n");

29
commands/awk/parse.c → external/historical/nawk/dist/parse.c vendored
View File

@ -22,6 +22,10 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#define DEBUG
#include <stdio.h>
#include <string.h>
@ -33,7 +37,7 @@ Node *nodealloc(int n)
{
Node *x;
x = (Node *) malloc(sizeof(Node) + (n-1)*sizeof(Node *));
x = malloc(sizeof(Node) + (n-1)*sizeof(Node *));
if (x == NULL)
FATAL("out of space in nodealloc");
x->nnext = NULL;
@ -93,6 +97,20 @@ Node *node4(int a, Node *b, Node *c, Node *d, Node *e)
return(x);
}
Node *node5(int a, Node *b, Node *c, Node *d, Node *e, Node *f)
{
Node *x;
x = nodealloc(5);
x->nobj = a;
x->narg[0] = b;
x->narg[1] = c;
x->narg[2] = d;
x->narg[3] = e;
x->narg[4] = f;
return(x);
}
Node *stat1(int a, Node *b)
{
Node *x;
@ -165,6 +183,15 @@ Node *op4(int a, Node *b, Node *c, Node *d, Node *e)
return(x);
}
Node *op5(int a, Node *b, Node *c, Node *d, Node *e, Node *f)
{
Node *x;
x = node5(a,b,c,d,e, f);
x->ntype = NEXPR;
return(x);
}
Node *celltonode(Cell *a, int b)
{
Node *x;

213
external/historical/nawk/dist/proctab.c vendored Normal file
View File

@ -0,0 +1,213 @@
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <stdio.h>
#include "awk.h"
#include "awkgram.h"
static const char * const printname[94] = {
"FIRSTTOKEN", /* 257 */
"PROGRAM", /* 258 */
"PASTAT", /* 259 */
"PASTAT2", /* 260 */
"XBEGIN", /* 261 */
"XEND", /* 262 */
"NL", /* 263 */
"ARRAY", /* 264 */
"MATCH", /* 265 */
"NOTMATCH", /* 266 */
"MATCHOP", /* 267 */
"FINAL", /* 268 */
"DOT", /* 269 */
"ALL", /* 270 */
"CCL", /* 271 */
"NCCL", /* 272 */
"CHAR", /* 273 */
"OR", /* 274 */
"STAR", /* 275 */
"QUEST", /* 276 */
"PLUS", /* 277 */
"EMPTYRE", /* 278 */
"AND", /* 279 */
"BOR", /* 280 */
"APPEND", /* 281 */
"EQ", /* 282 */
"GE", /* 283 */
"GT", /* 284 */
"LE", /* 285 */
"LT", /* 286 */
"NE", /* 287 */
"IN", /* 288 */
"ARG", /* 289 */
"BLTIN", /* 290 */
"BREAK", /* 291 */
"CLOSE", /* 292 */
"CONTINUE", /* 293 */
"DELETE", /* 294 */
"DO", /* 295 */
"EXIT", /* 296 */
"FOR", /* 297 */
"FUNC", /* 298 */
"SUB", /* 299 */
"GSUB", /* 300 */
"IF", /* 301 */
"INDEX", /* 302 */
"LSUBSTR", /* 303 */
"MATCHFCN", /* 304 */
"NEXT", /* 305 */
"NEXTFILE", /* 306 */
"ADD", /* 307 */
"MINUS", /* 308 */
"MULT", /* 309 */
"DIVIDE", /* 310 */
"MOD", /* 311 */
"ASSIGN", /* 312 */
"ASGNOP", /* 313 */
"ADDEQ", /* 314 */
"SUBEQ", /* 315 */
"MULTEQ", /* 316 */
"DIVEQ", /* 317 */
"MODEQ", /* 318 */
"POWEQ", /* 319 */
"PRINT", /* 320 */
"PRINTF", /* 321 */
"SPRINTF", /* 322 */
"ELSE", /* 323 */
"INTEST", /* 324 */
"CONDEXPR", /* 325 */
"POSTINCR", /* 326 */
"PREINCR", /* 327 */
"POSTDECR", /* 328 */
"PREDECR", /* 329 */
"VAR", /* 330 */
"IVAR", /* 331 */
"VARNF", /* 332 */
"CALL", /* 333 */
"NUMBER", /* 334 */
"STRING", /* 335 */
"REGEXPR", /* 336 */
"GETLINE", /* 337 */
"GENSUB", /* 338 */
"RETURN", /* 339 */
"SPLIT", /* 340 */
"SUBSTR", /* 341 */
"WHILE", /* 342 */
"CAT", /* 343 */
"NOT", /* 344 */
"UMINUS", /* 345 */
"POWER", /* 346 */
"DECR", /* 347 */
"INCR", /* 348 */
"INDIRECT", /* 349 */
"LASTTOKEN", /* 350 */
};
Cell *(*proctab[94])(Node **, int) = {
nullproc, /* FIRSTTOKEN */
program, /* PROGRAM */
pastat, /* PASTAT */
dopa2, /* PASTAT2 */
nullproc, /* XBEGIN */
nullproc, /* XEND */
nullproc, /* NL */
array, /* ARRAY */
matchop, /* MATCH */
matchop, /* NOTMATCH */
nullproc, /* MATCHOP */
nullproc, /* FINAL */
nullproc, /* DOT */
nullproc, /* ALL */
nullproc, /* CCL */
nullproc, /* NCCL */
nullproc, /* CHAR */
nullproc, /* OR */
nullproc, /* STAR */
nullproc, /* QUEST */
nullproc, /* PLUS */
nullproc, /* EMPTYRE */
boolop, /* AND */
boolop, /* BOR */
nullproc, /* APPEND */
relop, /* EQ */
relop, /* GE */
relop, /* GT */
relop, /* LE */
relop, /* LT */
relop, /* NE */
instat, /* IN */
arg, /* ARG */
bltin, /* BLTIN */
jump, /* BREAK */
closefile, /* CLOSE */
jump, /* CONTINUE */
awkdelete, /* DELETE */
dostat, /* DO */
jump, /* EXIT */
forstat, /* FOR */
nullproc, /* FUNC */
sub, /* SUB */
gsub, /* GSUB */
ifstat, /* IF */
sindex, /* INDEX */
nullproc, /* LSUBSTR */
matchop, /* MATCHFCN */
jump, /* NEXT */
jump, /* NEXTFILE */
arith, /* ADD */
arith, /* MINUS */
arith, /* MULT */
arith, /* DIVIDE */
arith, /* MOD */
assign, /* ASSIGN */
nullproc, /* ASGNOP */
assign, /* ADDEQ */
assign, /* SUBEQ */
assign, /* MULTEQ */
assign, /* DIVEQ */
assign, /* MODEQ */
assign, /* POWEQ */
printstat, /* PRINT */
awkprintf, /* PRINTF */
awksprintf, /* SPRINTF */
nullproc, /* ELSE */
intest, /* INTEST */
condexpr, /* CONDEXPR */
incrdecr, /* POSTINCR */
incrdecr, /* PREINCR */
incrdecr, /* POSTDECR */
incrdecr, /* PREDECR */
nullproc, /* VAR */
nullproc, /* IVAR */
getnf, /* VARNF */
call, /* CALL */
nullproc, /* NUMBER */
nullproc, /* STRING */
nullproc, /* REGEXPR */
awkgetline, /* GETLINE */
gensub, /* GENSUB */
jump, /* RETURN */
split, /* SPLIT */
substr, /* SUBSTR */
whilestat, /* WHILE */
cat, /* CAT */
boolop, /* NOT */
arith, /* UMINUS */
arith, /* POWER */
nullproc, /* DECR */
nullproc, /* INCR */
indirect, /* INDIRECT */
nullproc, /* LASTTOKEN */
};
const char *tokname(int n)
{
static char buf[100];
if (n < FIRSTTOKEN || n > LASTTOKEN) {
snprintf(buf, sizeof(buf), "token %d", n);
return buf;
}
return printname[n-FIRSTTOKEN];
}

41
commands/awk/proto.h → external/historical/nawk/dist/proto.h vendored
View File

@ -43,17 +43,18 @@ extern fa *mkdfa(const char *, int);
extern int makeinit(fa *, int);
extern void penter(Node *);
extern void freetr(Node *);
extern int hexstr(char **);
extern int quoted(char **);
extern int hexstr(const uschar **);
extern int quoted(const uschar **);
extern char *cclenter(const char *);
extern void overflo(const char *);
extern void overflo(const char *) __dead;
extern void cfoll(fa *, Node *);
extern int first(const Node *);
extern int first(Node *);
extern void follow(Node *);
extern int member(int, const char *);
extern int match(fa *, const char *);
extern int pmatch(fa *, const char *);
extern int nematch(fa *, const char *);
extern int fnematch(fa *, FILE *, uschar **, int *, int);
extern Node *reparse(const char *);
extern Node *regexp(void);
extern Node *primary(void);
@ -73,12 +74,14 @@ extern Node *node1(int, Node *);
extern Node *node2(int, Node *, Node *);
extern Node *node3(int, Node *, Node *, Node *);
extern Node *node4(int, Node *, Node *, Node *, Node *);
extern Node *node5(int, Node *, Node *, Node *, Node *, Node *);
extern Node *stat3(int, Node *, Node *, Node *);
extern Node *op2(int, Node *, Node *);
extern Node *op1(int, Node *);
extern Node *stat1(int, Node *);
extern Node *op3(int, Node *, Node *, Node *);
extern Node *op4(int, Node *, Node *, Node *, Node *);
extern Node *op5(int, Node *, Node *, Node *, Node *, Node *);
extern Node *stat2(int, Node *, Node *);
extern Node *stat4(int, Node *, Node *, Node *, Node *);
extern Node *celltonode(Cell *, int);
@ -88,7 +91,7 @@ extern Node *pa2stat(Node *, Node *, Node *);
extern Node *linkum(Node *, Node *);
extern void defn(Cell *, Node *, Node *);
extern int isarg(const char *);
extern char *tokname(int);
extern const char *tokname(int);
extern Cell *(*proctab[])(Node **, int);
extern int ptoi(void *);
extern Node *itonp(int);
@ -97,12 +100,12 @@ extern void syminit(void);
extern void arginit(int, char **);
extern void envinit(char **);
extern Array *makesymtab(int);
extern void freesymtab(const Cell *);
extern void freeelem(const Cell *, const char *);
extern void freesymtab(Cell *);
extern void freeelem(Cell *, const char *);
extern Cell *setsymtab(const char *, const char *, double, unsigned int, Array *);
extern int hash(const char *, int);
extern void rehash(Array *);
extern Cell *lookup(const char *, const Array *);
extern Cell *lookup(const char *, Array *);
extern double setfval(Cell *, double);
extern void funnyvar(Cell *, const char *);
extern char *setsval(Cell *, const char *);
@ -110,30 +113,35 @@ extern double getfval(Cell *);
extern char *getsval(Cell *);
extern char *getpssval(Cell *); /* for print */
extern char *tostring(const char *);
extern char *tostringN(const char *, size_t n);
extern char *qstring(const char *, int);
extern Cell *catstr(Cell *, Cell *);
extern void recinit(unsigned int);
extern void initgetrec(void);
extern void makefields(int, int);
extern void growfldtab(int n);
extern int getrec(char **, int *, int);
extern int getrec(uschar **, int *, int);
extern void nextfile(void);
extern int readrec(char **buf, int *bufsize, FILE *inf);
extern int readrec(uschar **buf, int *bufsize, FILE *inf, int newflag);
extern char *getargv(int);
extern void setclvar(char *);
extern void fldbld(void);
extern void cleanfld(int, int);
extern void newfld(int);
extern void setlastfld(int);
extern int refldbld(const char *, const char *);
extern void recbld(void);
extern Cell *fieldadr(int);
extern void yyerror(const char *);
extern void fpecatch(int);
extern void bracecheck(void);
extern void bcheck2(int, int, int);
extern void SYNTAX(const char *, ...);
extern void FATAL(const char *, ...);
extern void WARNING(const char *, ...);
extern void SYNTAX(const char *, ...)
__attribute__((__format__(__printf__, 1, 2)));
extern void FATAL(const char *, ...) __dead
__attribute__((__format__(__printf__, 1, 2)));
extern void WARNING(const char *, ...)
__attribute__((__format__(__printf__, 1, 2)));
extern void error(void);
extern void eprint(void);
extern void bclass(int);
@ -141,7 +149,7 @@ extern double errcheck(double, const char *);
extern int isclvar(const char *);
extern int is_number(const char *);
extern int adjbuf(char **pb, int *sz, int min, int q, char **pbp, const char *what);
extern int adjbuf(uschar **pb, int *sz, int min, int q, uschar **pbp, const char *what);
extern void run(Node *);
extern Cell *execute(Node *);
extern Cell *program(Node **, int);
@ -184,12 +192,13 @@ extern Cell *bltin(Node **, int);
extern Cell *printstat(Node **, int);
extern Cell *nullproc(Node **, int);
extern FILE *redirect(int, Node *);
extern FILE *openfile(int, const char *);
extern FILE *openfile(int, const char *, int *);
extern const char *filename(FILE *);
extern Cell *closefile(Node **, int);
extern void closeall(void);
extern Cell *sub(Node **, int);
extern Cell *gsub(Node **, int);
extern Cell *gensub(Node **, int);
extern FILE *popen(const char *, const char *);
extern int pclose(FILE *);

589
commands/awk/run.c → external/historical/nawk/dist/run.c vendored
View File

File diff suppressed because it is too large Load Diff

84
commands/awk/tran.c → external/historical/nawk/dist/tran.c vendored
View File

@ -22,6 +22,10 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
****************************************************************/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#define DEBUG
#include <stdio.h>
#include <math.h>
@ -108,7 +112,7 @@ void arginit(int ac, char **av) /* set up ARGV and ARGC */
ARGVtab = makesymtab(NSYMTAB); /* could be (int) ARGC as well */
cp->sval = (char *) ARGVtab;
for (i = 0; i < ac; i++) {
sprintf(temp, "%d", i);
snprintf(temp, sizeof(temp), "%d", i);
if (is_number(*av))
setsymtab(temp, *av, atof(*av), STR|NUM, ARGVtab);
else
@ -144,8 +148,8 @@ Array *makesymtab(int n) /* make a new symbol table */
Array *ap;
Cell **tp;
ap = (Array *) malloc(sizeof(Array));
tp = (Cell **) calloc(n, sizeof(Cell *));
ap = malloc(sizeof(*ap));
tp = calloc(n, sizeof(*tp));
if (ap == NULL || tp == NULL)
FATAL("out of space in makesymtab");
ap->nelem = 0;
@ -154,7 +158,7 @@ Array *makesymtab(int n) /* make a new symbol table */
return(ap);
}
void freesymtab(const Cell *ap) /* free a symbol table */
void freesymtab(Cell *ap) /* free a symbol table */
{
Cell *cp, *temp;
Array *tp;
@ -182,8 +186,7 @@ void freesymtab(const Cell *ap) /* free a symbol table */
free(tp);
}
void freeelem(const Cell *ap, const char *s)
/* free elem s from ap (i.e., ap["s"] */
void freeelem(Cell *ap, const char *s) /* free elem s from ap (i.e., ap["s"] */
{
Array *tp;
Cell *p, *prev = NULL;
@ -211,12 +214,15 @@ Cell *setsymtab(const char *n, const char *s, Awkfloat f, unsigned t, Array *tp)
int h;
Cell *p;
if (n != NULL && (p = lookup(n, tp)) != NULL) {
if (n == NULL)
n = "";
if ((p = lookup(n, tp)) != NULL) {
dprintf( ("setsymtab found %p: n=%s s=\"%s\" f=%g t=%o\n",
p, NN(p->nval), NN(p->sval), p->fval, p->tval) );
return(p);
}
p = (Cell *) malloc(sizeof(Cell));
p = malloc(sizeof(*p));
if (p == NULL)
FATAL("out of space for symbol table at %s", n);
p->nval = tostring(n);
@ -251,7 +257,7 @@ void rehash(Array *tp) /* rehash items in small table into big one */
Cell *cp, *op, **np;
nsz = GROWTAB * tp->size;
np = (Cell **) calloc(nsz, sizeof(Cell *));
np = calloc(nsz, sizeof(*np));
if (np == NULL) /* can't do it, but can keep running. */
return; /* someone else will run out later. */
for (i = 0; i < tp->size; i++) {
@ -267,7 +273,7 @@ void rehash(Array *tp) /* rehash items in small table into big one */
tp->size = nsz;
}
Cell *lookup(const char *s, const Array *tp) /* look for s in tp */
Cell *lookup(const char *s, Array *tp) /* look for s in tp */
{
Cell *p;
int h;
@ -283,6 +289,7 @@ Awkfloat setfval(Cell *vp, Awkfloat f) /* set float val of a Cell */
{
int fldno;
f += 0.0; /* normalise negative zero to positive zero */
if ((vp->tval & (NUM | STR)) == 0)
funnyvar(vp, "assign to");
if (isfld(vp)) {
@ -291,6 +298,10 @@ Awkfloat setfval(Cell *vp, Awkfloat f) /* set float val of a Cell */
if (fldno > *NF)
newfld(fldno);
dprintf( ("setting field %d to %g\n", fldno, f) );
} else if (&vp->fval == NF) {
donerec = 0; /* mark $0 invalid */
setlastfld(f);
dprintf( ("setting NF to %g\n", f) );
} else if (isrec(vp)) {
donefld = 0; /* mark $1... invalid */
donerec = 1;
@ -317,6 +328,7 @@ char *setsval(Cell *vp, const char *s) /* set string val of a Cell */
{
char *t;
int fldno;
Awkfloat f;
dprintf( ("starting setsval %p: %s = \"%s\", t=%o, r,f=%d,%d\n",
vp, NN(vp->nval), s, vp->tval, donerec, donefld) );
@ -340,7 +352,16 @@ char *setsval(Cell *vp, const char *s) /* set string val of a Cell */
vp->tval &= ~DONTFREE;
dprintf( ("setsval %p: %s = \"%s (%p) \", t=%o r,f=%d,%d\n",
vp, NN(vp->nval), t,t, vp->tval, donerec, donefld) );
return(vp->sval = t);
vp->sval = t;
if (&vp->fval == NF) {
donerec = 0; /* mark $0 invalid */
f = getfval(vp);
setlastfld(f);
dprintf( ("setting NF to %g\n", f) );
}
return(vp->sval);
}
Awkfloat getfval(Cell *vp) /* get float val of a Cell */
@ -360,10 +381,9 @@ Awkfloat getfval(Cell *vp) /* get float val of a Cell */
return(vp->fval);
}
static char *get_str_val(Cell *vp, char **fmt)
/* get string val of a Cell */
static char *get_str_val(Cell *vp, char **fmt) /* get string val of a Cell */
{
char s[100]; /* BUG: unchecked */
char s[100];
double dtemp;
if ((vp->tval & (NUM | STR)) == 0)
@ -376,9 +396,9 @@ static char *get_str_val(Cell *vp, char **fmt)
if (freeable(vp))
xfree(vp->sval);
if (modf(vp->fval, &dtemp) == 0) /* it's integral */
sprintf(s, "%.30g", vp->fval);
snprintf(s, sizeof(s), "%.30g", vp->fval);
else
sprintf(s, *fmt, vp->fval);
snprintf(s, sizeof(s), *fmt, vp->fval);
vp->sval = tostring(s);
vp->tval &= ~DONTFREE;
vp->tval |= STR;
@ -402,7 +422,33 @@ char *tostring(const char *s) /* make a copy of string s */
{
char *p;
p = (char *) malloc(strlen(s)+1);
p = strdup(s);
if (p == NULL)
FATAL("out of space in tostring on %s", s);
return(p);
}
Cell *catstr(Cell *a, Cell *b) /* concatenate a and b */
{
Cell *c;
char *p;
char *sa = getsval(a);
char *sb = getsval(b);
size_t l = strlen(sa) + strlen(sb) + 1;
p = malloc(l);
if (p == NULL)
FATAL("out of space concatenating %s and %s", sa, sb);
snprintf(p, l, "%s%s", sa, sb);
c = setsymtab(p, p, 0.0, CON|STR|DONTFREE, symtab);
free(p);
return c;
}
char *tostringN(const char *s, size_t n) /* make a copy of string s */
{
char *p;
p = malloc(n);
if (p == NULL)
FATAL("out of space in tostring on %s", s);
strcpy(p, s);
@ -413,10 +459,10 @@ char *qstring(const char *is, int delim) /* collect string up to next delim */
{
const char *os = is;
int c, n;
uschar *s = (uschar *) is;
const uschar *s = (const uschar *) is;
uschar *buf, *bp;
if ((buf = (uschar *) malloc(strlen(is)+3)) == NULL)
if ((buf = malloc(strlen(is)+3)) == NULL)
FATAL( "out of space in qstring(%s)", s);
for (bp = buf; (c = *s) != delim; s++) {
if (c == '\n')