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2bebf11d41e1d03bd7f7b56d3e6cd62f99b85d0e
hawk/bin/sed.c
hyung-hwan 531de73535
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removed hawk-std.h and merged the text to hawk.h
2025-10-03 00:21:18 +09:00

767 lines
19 KiB
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/*
* $Id$
*
Copyright (c) 2006-2020 Chung, Hyung-Hwan. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "main.h"
#include <hawk-sed.h>
#include <hawk-cli.h>
#include <hawk-fmt.h>
#include <hawk-utl.h>
#include <hawk-xma.h>
#if !defined(_GNU_SOURCE)
# define _GNU_SOURCE
#endif
#if !defined(_XOPEN_SOURCE)
# define _XOPEN_SOURCE 700
#endif
#include <locale.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#if defined(_WIN32)
# include <windows.h>
#elif defined(__OS2__)
# define INCL_ERRORS
# include <os2.h>
# include <signal.h>
#elif defined(__DOS__)
# include <dos.h>
# include <signal.h>
#else
# include <unistd.h>
# include <errno.h>
# include <signal.h>
#endif
static struct
{
hawk_sed_iostd_t* io;
hawk_oow_t capa;
hawk_oow_t size;
} g_script =
{
HAWK_NULL,
0,
0
};
static hawk_sed_t* g_sed = HAWK_NULL;
static hawk_cmgr_t* g_script_cmgr = HAWK_NULL;
static hawk_cmgr_t* g_infile_cmgr = HAWK_NULL;
static hawk_cmgr_t* g_outfile_cmgr = HAWK_NULL;
/* ------------------------------------------------------------------- */
struct arg_t
{
hawk_bch_t* output_file;
int infile_pos;
int option;
int separate;
int inplace;
int wildcard;
int debug;
#if defined(HAWK_ENABLE_SEDTRACER)
int trace;
#endif
hawk_uintptr_t memlimit;
};
/* ------------------------------------------------------------------- */
static void print_usage (FILE* out, const hawk_bch_t* argv0, const hawk_bch_t* real_argv0)
{
const hawk_bch_t* b1 = hawk_get_base_name_bcstr(real_argv0? real_argv0: argv0);
const hawk_bch_t* b2 = (real_argv0? " ": "");
const hawk_bch_t* b3 = (real_argv0? argv0: "");
fprintf (out, "USAGE: %s%s%s [options] script [file]\n", b1, b2, b3);
fprintf (out, " %s%s%s [options] -f script-file [file]\n", b1, b2, b3);
fprintf (out, " %s%s%s [options] -e script [file]\n", b1, b2, b3);
fprintf (out, "Options as follows:\n");
fprintf (out, " -h/--help show this message\n");
fprintf (out, " -D show extra information\n");
fprintf (out, " -n disable auto-print\n");
fprintf (out, " -e script specify a script\n");
fprintf (out, " -f file specify a script file\n");
fprintf (out, " -o file specify an output file\n");
fprintf (out, " -r use the extended regular expression\n");
fprintf (out, " -R enable non-standard extensions to the regular\n");
fprintf (out, " expression\n");
fprintf (out, " -i perform in-place editing. imply -s\n");
fprintf (out, " -s process input files separately\n");
fprintf (out, " -a perform strict address and label check\n");
fprintf (out, " -b allow extended address formats\n");
fprintf (out, " <start~step>,<start,+line>,<start,~line>,<0,/regex/>\n");
fprintf (out, " -x allow text on the same line as c, a, i\n");
fprintf (out, " -y ensure a newline at text end\n");
fprintf (out, " -m/--memory-limit number specify the maximum amount of memory to use in bytes\n");
fprintf (out, " -w expand file wildcards\n");
#if defined(HAWK_ENABLE_SEDTRACER)
fprintf (out, " -t print command traces\n");
#endif
#if defined(HAWK_OOCH_IS_UCH)
fprintf (out, " --script-encoding string specify script file encoding name\n");
fprintf (out, " --infile-encoding string specify input file encoding name\n");
fprintf (out, " --outfile-encoding string specify output file encoding name\n");
#endif
}
static int add_script (const hawk_bch_t* str, int mem)
{
if (g_script.size >= g_script.capa)
{
hawk_sed_iostd_t* tmp;
tmp = (hawk_sed_iostd_t*)realloc(g_script.io, HAWK_SIZEOF(*g_script.io) * (g_script.capa + 16 + 1));
if (tmp == HAWK_NULL)
{
hawk_main_print_error("out of memory while processing %s\n", str);
return -1;
}
g_script.io = tmp;
g_script.capa += 16;
}
if (mem)
{
/* string */
g_script.io[g_script.size].type = HAWK_SED_IOSTD_BCS;
/* though its type is not qualified to be const,
* u.mem.ptr is actually const when used for input */
g_script.io[g_script.size].u.bcs.ptr = (hawk_bch_t*)str;
g_script.io[g_script.size].u.bcs.len = hawk_count_bcstr(str);
}
else
{
/* file name */
g_script.io[g_script.size].type = HAWK_SED_IOSTD_FILEB;
g_script.io[g_script.size].u.fileb.path = str;
g_script.io[g_script.size].u.fileb.cmgr = g_script_cmgr;
}
g_script.size++;
return 0;
}
static void free_scripts (void)
{
if (g_script.io)
{
free (g_script.io);
g_script.io = HAWK_NULL;
g_script.capa = 0;
g_script.size = 0;
}
}
static int handle_args (int argc, hawk_bch_t* argv[], const hawk_bch_t* real_argv0, struct arg_t* arg)
{
static hawk_bcli_lng_t lng[] =
{
#if defined(HAWK_OOCH_IS_UCH)
{ ":script-encoding", '\0' },
{ ":infile-encoding", '\0' },
{ ":outfile-encoding", '\0' },
#endif
{ ":memory-limit", 'm' },
{ "help", 'h' },
{ HAWK_NULL, '\0' }
};
static hawk_bcli_t opt =
{
"hDne:f:o:rRisabxytm:w",
lng
};
hawk_bci_t c;
while ((c = hawk_get_bcli(argc, argv, &opt)) != HAWK_BCI_EOF)
{
switch (c)
{
default:
print_usage(stderr, argv[0], real_argv0);
goto oops;
case '?':
hawk_main_print_error("bad option - %c\n", opt.opt);
print_usage(stderr, argv[0], real_argv0);
goto oops;
case ':':
hawk_main_print_error("bad parameter for %c\n", opt.opt);
print_usage(stderr, argv[0], real_argv0);
goto oops;
case 'h':
print_usage(stdout, argv[0], real_argv0);
goto done;
case 'D':
arg->debug = 1;
break;
case 'n':
arg->option |= HAWK_SED_QUIET;
break;
case 'e':
if (add_script(opt.arg, 1) <= -1) goto oops;
break;
case 'f':
if (add_script(opt.arg, 0) <= -1) goto oops;
break;
case 'o':
arg->output_file = opt.arg;
break;
case 'r':
arg->option |= HAWK_SED_EXTENDEDREX;
break;
case 'R':
arg->option |= HAWK_SED_NONSTDEXTREX;
break;
case 'i':
/* 'i' implies 's'. */
arg->inplace = 1;
case 's':
arg->separate = 1;
break;
case 'a':
arg->option |= HAWK_SED_STRICT;
break;
case 'b':
arg->option |= HAWK_SED_EXTENDEDADR;
break;
case 'x':
arg->option |= HAWK_SED_SAMELINE;
break;
case 'y':
arg->option |= HAWK_SED_ENSURENL;
break;
case 't':
#if defined(HAWK_ENABLE_SEDTRACER)
arg->trace = 1;
break;
#else
print_usage(stderr, argv[0], real_argv0);
goto oops;
#endif
case 'm':
arg->memlimit = strtoul(opt.arg, HAWK_NULL, 10);
break;
case 'w':
arg->wildcard = 1;
break;
case '\0':
{
if (hawk_comp_bcstr(opt.lngopt, "script-encoding", 0) == 0)
{
g_script_cmgr = hawk_get_cmgr_by_bcstr(opt.arg);
if (g_script_cmgr == HAWK_NULL)
{
hawk_main_print_error("unknown script encoding - %s\n", opt.arg);
goto oops;
}
}
else if (hawk_comp_bcstr(opt.lngopt, "infile-encoding", 0) == 0)
{
g_infile_cmgr = hawk_get_cmgr_by_bcstr(opt.arg);
if (g_infile_cmgr == HAWK_NULL)
{
hawk_main_print_error("unknown input file encoding - %s\n", opt.arg);
goto oops;
}
}
else if (hawk_comp_bcstr(opt.lngopt, "outfile-encoding", 0) == 0)
{
g_outfile_cmgr = hawk_get_cmgr_by_bcstr(opt.arg);
if (g_outfile_cmgr == HAWK_NULL)
{
hawk_main_print_error("unknown output file encoding - %s\n", opt.arg);
goto oops;
}
}
break;
}
}
}
if (opt.ind < argc && g_script.size <= 0)
{
if (add_script(argv[opt.ind++], 1) <= -1) goto oops;
}
if (opt.ind < argc) arg->infile_pos = opt.ind;
if (g_script.size <= 0)
{
print_usage(stderr, argv[0], real_argv0);
goto oops;
}
g_script.io[g_script.size].type = HAWK_SED_IOSTD_NULL;
return 1;
oops:
free_scripts ();
return -1;
done:
free_scripts ();
return 0;
}
static void print_exec_error(hawk_sed_t* sed)
{
const hawk_loc_t* errloc = hawk_sed_geterrloc(sed);
if (errloc->line > 0 || errloc->colm > 0)
{
hawk_main_print_error("cannot execute - %s at line %lu column %lu\n",
hawk_sed_geterrbmsg(sed), (unsigned long)errloc->line, (unsigned long)errloc->colm);
}
else
{
hawk_main_print_error("cannot execute - %s\n", hawk_sed_geterrbmsg(sed));
}
}
/* ---------------------------------------------------------------------- */
static void stop_run (int signo)
{
#if !defined(_WIN32) && !defined(__OS2__) && !defined(__DOS__)
int e = errno;
#endif
hawk_sed_halt(g_sed);
#if !defined(_WIN32) && !defined(__OS2__) && !defined(__DOS__)
errno = e;
#endif
}
static void set_intr_run (void)
{
#if defined(SIGTERM)
hawk_main_set_signal_handler(SIGTERM, stop_run, 0);
#endif
#if defined(SIGHUP)
hawk_main_set_signal_handler(SIGHUP, stop_run, 0);
#endif
#if defined(SIGINT)
hawk_main_set_signal_handler(SIGINT, stop_run, 0);
#endif
#if !defined(_WIN32) && !defined(__OS2__) && !defined(__DOS__) && defined(SIGPIPE)
hawk_main_set_signal_handler(SIGPIPE, hawk_main_do_nothing_on_signal, 0);
#endif
}
static void unset_intr_run (void)
{
#if defined(SIGTERM)
hawk_main_unset_signal_handler(SIGTERM);
#endif
#if defined(SIGHUP)
hawk_main_unset_signal_handler(SIGHUP);
#endif
#if defined(SIGINT)
hawk_main_unset_signal_handler(SIGINT);
#endif
#if !defined(_WIN32) && !defined(__OS2__) && !defined(__DOS__) && defined(SIGPIPE)
hawk_main_unset_signal_handler(SIGPIPE);
#endif
}
#if defined(HAWK_ENABLE_SEDTRACER)
static void trace_exec (hawk_sed_t* sed, hawk_sed_tracer_op_t op, const hawk_sed_cmd_t* cmd)
{
switch (op)
{
case HAWK_SED_TRACER_READ:
/*hawk_fprintf (HAWK_STDERR, HAWK_T("reading...\n"));*/
break;
case HAWK_SED_TRACER_WRITE:
/*hawk_fprintf (HAWK_STDERR, HAWK_T("wrting...\n"));*/
break;
/* TODO: use function to get hold space and pattern space and print them */
case HAWK_SED_TRACER_MATCH:
hawk_fprintf (HAWK_STDERR, HAWK_T("%s:%lu [%c] MA\n"),
((cmd->lid && cmd->lid[0])? cmd->lid: HAWK_T("<<UNKNOWN>>")),
(unsigned long)cmd->loc.line,
cmd->type
);
break;
case HAWK_SED_TRACER_EXEC:
hawk_fprintf (HAWK_STDERR, HAWK_T("%s:%lu [%c] EC\n"),
((cmd->lid && cmd->lid[0])? cmd->lid: HAWK_T("<<UNKNOWN>>")),
(unsigned long)cmd->loc.line,
cmd->type
);
break;
}
}
#endif
int main_sed(int argc, hawk_bch_t* argv[], const hawk_bch_t* real_argv0)
{
hawk_sed_t* sed = HAWK_NULL;
hawk_oow_t script_count;
int ret = -1;
struct arg_t arg;
hawk_main_xarg_t xarg;
int xarg_inited = 0;
hawk_mmgr_t* mmgr = hawk_get_sys_mmgr();
hawk_cmgr_t* cmgr = hawk_get_cmgr_by_id(HAWK_CMGR_UTF8);
hawk_mmgr_t xma_mmgr;
hawk_errinf_t errinf;
memset (&arg, 0, HAWK_SIZEOF(arg));
ret = handle_args(argc, argv, real_argv0, &arg);
if (ret <= -1) return -1;
if (ret == 0) return 0;
ret = -1;
if (arg.memlimit > 0)
{
if (hawk_init_xma_mmgr(&xma_mmgr, arg.memlimit) <= -1)
{
hawk_main_print_error("cannot open memory heap\n");
goto oops;
}
mmgr = &xma_mmgr;
}
sed = hawk_sed_openstdwithmmgr(mmgr, 0, cmgr, &errinf);
if (!sed)
{
const hawk_bch_t* msg;
#if defined(HAWK_OOCH_IS_UCH)
hawk_bch_t msgbuf[HAWK_ERRMSG_CAPA];
hawk_oow_t msglen, wcslen;
msglen = HAWK_COUNTOF(msgbuf);
hawk_conv_ucstr_to_bcstr_with_cmgr(errinf.msg, &wcslen, msgbuf, &msglen, cmgr);
msg = msgbuf;
#else
msg = errinf.msg;
#endif
hawk_main_print_error("cannot open stream editor - %s\n", msg);
goto oops;
}
hawk_sed_setopt (sed, HAWK_SED_TRAIT, &arg.option);
if (hawk_sed_compstd(sed, g_script.io, &script_count) <= -1)
{
const hawk_loc_t* errloc;
const hawk_bch_t* target;
hawk_bch_t exprbuf[128];
errloc = hawk_sed_geterrloc(sed);
if (g_script.io[script_count].type == HAWK_SED_IOSTD_FILEB)
{
target = g_script.io[script_count].u.fileb.path;
}
else
{
/* i dont' use HAWK_SED_IOSTD_SIO for input */
HAWK_ASSERT (g_script.io[script_count].type == HAWK_SED_IOSTD_BCS);
hawk_fmt_uintmax_to_bcstr (exprbuf, HAWK_COUNTOF(exprbuf),
script_count, 10, -1, '\0', "expression #");
target = exprbuf;
}
if (errloc->line > 0 || errloc->colm > 0)
{
hawk_main_print_error("cannot compile %s - %s at line %lu column %lu\n",
target, hawk_sed_geterrbmsg(sed), (unsigned long)errloc->line, (unsigned long)errloc->colm
);
}
else
{
hawk_main_print_error("cannot compile %s - %s\n", target, hawk_sed_geterrbmsg(sed));
}
goto oops;
}
#if defined(HAWK_ENABLE_SEDTRACER)
if (g_trace) hawk_sed_setopt (sed, HAWK_SED_TRACER, trace_exec);
#endif
memset (&xarg, 0, HAWK_SIZEOF(xarg));
xarg_inited = 1;
if (arg.separate && arg.infile_pos > 0)
{
/* 's' and input files are specified on the command line */
hawk_sed_iostd_t out_file;
hawk_sed_iostd_t out_inplace;
hawk_sed_iostd_t* output_file = HAWK_NULL;
hawk_sed_iostd_t* output = HAWK_NULL;
int inpos;
/* a dash is treated specially for HAWK_SED_IOSTD_FILE in
* hawk_sed_execstd(). so make an exception here */
if (arg.output_file && hawk_comp_bcstr(arg.output_file, "-", 0) != 0)
{
out_file.type = HAWK_SED_IOSTD_SIO;
out_file.u.sio = hawk_sio_open(
hawk_sed_getgem(sed),
0,
(const hawk_ooch_t*)arg.output_file, /* fake type casting - note HAWK_SIO_BCSTRPATH below */
HAWK_SIO_WRITE |
HAWK_SIO_CREATE |
HAWK_SIO_TRUNCATE |
HAWK_SIO_IGNOREECERR |
HAWK_SIO_BCSTRPATH
);
if (out_file.u.sio == HAWK_NULL)
{
hawk_main_print_error("cannot open %s\n", arg.output_file);
goto oops;
}
output_file = &out_file;
output = output_file;
}
/* perform wild-card expansions for non-unix platforms */
if (hawk_main_expand_wildcard(argc - arg.infile_pos, &argv[arg.infile_pos], arg.wildcard, &xarg) <= -1)
{
hawk_main_print_error("out of memory\n");
goto oops;
}
for (inpos = 0; inpos < xarg.size; inpos++)
{
hawk_sed_iostd_t in[2];
hawk_bch_t* tmpl_tmpfile;
in[0].type = HAWK_SED_IOSTD_FILEB;
in[0].u.fileb.path = xarg.ptr[inpos];
in[0].u.fileb.cmgr = g_infile_cmgr;
in[1].type = HAWK_SED_IOSTD_NULL;
tmpl_tmpfile = HAWK_NULL;
if (arg.inplace && in[0].u.file.path)
{
int retried = 0;
const hawk_bch_t* f[3];
f[0] = in[0].u.fileb.path;
f[1] = ".XXXX";
f[2] = HAWK_NULL;
tmpl_tmpfile = hawk_gem_dupbcstrarr(hawk_sed_getgem(sed), f, HAWK_NULL);
if (tmpl_tmpfile == HAWK_NULL)
{
hawk_main_print_error("out of memory\n");
goto oops;
}
open_temp:
out_inplace.type = HAWK_SED_IOSTD_SIO;
out_inplace.u.sio = hawk_sio_open(
hawk_sed_getgem(sed),
0,
(const hawk_ooch_t*)tmpl_tmpfile, /* fake type casting - note HAWK_SIO_BCSTRPATH below */
HAWK_SIO_WRITE |
HAWK_SIO_CREATE |
HAWK_SIO_IGNOREECERR |
HAWK_SIO_EXCLUSIVE |
HAWK_SIO_TEMPORARY |
HAWK_SIO_BCSTRPATH
);
if (out_inplace.u.sio == HAWK_NULL)
{
if (retried)
{
hawk_main_print_error("cannot open %s\n", tmpl_tmpfile);
hawk_sed_freemem(sed, tmpl_tmpfile);
goto oops;
}
else
{
/* retry to open the file with shorter names */
hawk_sed_freemem(sed, tmpl_tmpfile);
tmpl_tmpfile = hawk_gem_dupbcstr(hawk_sed_getgem(sed), "TMP-XXXX", HAWK_NULL);
if (tmpl_tmpfile == HAWK_NULL)
{
hawk_main_print_error("out of memory\n");
goto oops;
}
retried = 1;
goto open_temp;
}
}
output = &out_inplace;
}
if (hawk_sed_execstd(sed, in, output) <= -1)
{
if (output) hawk_sio_close(output->u.sio);
if (tmpl_tmpfile)
{
unlink (tmpl_tmpfile);
hawk_sed_freemem(sed, tmpl_tmpfile);
}
print_exec_error(sed);
goto oops;
}
if (tmpl_tmpfile)
{
HAWK_ASSERT (output == &out_inplace);
hawk_sio_close(output->u.sio);
output = output_file;
if (rename(tmpl_tmpfile, in[0].u.fileb.path) <= -1)
{
hawk_main_print_error("cannot rename %s to %s. not deleting %s\n",
tmpl_tmpfile, in[0].u.fileb.path, tmpl_tmpfile);
hawk_sed_freemem(sed, tmpl_tmpfile);
goto oops;
}
hawk_sed_freemem(sed, tmpl_tmpfile);
}
if (hawk_sed_ishalt(sed)) break;
}
if (output) hawk_sio_close(output->u.sio);
}
else
{
int xx;
hawk_sed_iostd_t* in = HAWK_NULL;
hawk_sed_iostd_t out;
if (arg.infile_pos > 0)
{
int i;
const hawk_bch_t* tmp;
/* input files are specified on the command line */
/* perform wild-card expansions for non-unix platforms */
if (hawk_main_expand_wildcard(argc - arg.infile_pos, &argv[arg.infile_pos], arg.wildcard, &xarg) <= -1)
{
hawk_main_print_error("out of memory\n");
goto oops;
}
in = (hawk_sed_iostd_t*)hawk_sed_allocmem(sed, HAWK_SIZEOF(*in) * (xarg.size + 1));
if (in == HAWK_NULL)
{
hawk_main_print_error("out of memory\n");
goto oops;
}
for (i = 0; i < xarg.size; i++)
{
in[i].type = HAWK_SED_IOSTD_FILEB;
tmp = xarg.ptr[i];
in[i].u.fileb.path = tmp;
in[i].u.fileb.cmgr = g_infile_cmgr;
}
in[i].type = HAWK_SED_IOSTD_NULL;
}
if (arg.output_file)
{
out.type = HAWK_SED_IOSTD_FILEB;
out.u.fileb.path = arg.output_file;
out.u.fileb.cmgr = g_outfile_cmgr;
}
else
{
/* arrange to be able to specify cmgr.
* if not for cmgr, i could simply pass HAWK_NULL
* to hawk_sed_execstd() below like
* xx = hawk_sed_execstd(sed, in, HAWK_NULL); */
out.type = HAWK_SED_IOSTD_FILEB;
out.u.fileb.path = HAWK_NULL;
out.u.fileb.cmgr = g_outfile_cmgr;
}
g_sed = sed;
set_intr_run();
xx = hawk_sed_execstd(sed, in, &out);
if (in) hawk_sed_freemem(sed, in);
unset_intr_run();
g_sed = HAWK_NULL;
if (xx <= -1)
{
print_exec_error(sed);
goto oops;
}
}
ret = 0;
oops:
if (xarg_inited) hawk_main_purge_xarg(&xarg);
if (sed) hawk_sed_close(sed);
if (arg.memlimit > 0)
{
if (arg.debug) hawk_xma_dump(xma_mmgr.ctx, hawk_main_print_xma, HAWK_NULL);
hawk_fini_xma_mmgr(&xma_mmgr);
}
free_scripts();
return ret;
}
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