OpenSolaris_b135/cmd/exstr/exstr.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <signal.h>
#include <setjmp.h>
#include <string.h>
/* external functions */
extern int getopt();
extern void exit();
extern int atoi();
extern int _filbuf();
extern char *optarg;
extern int optind, opterr;
/* static functions */
static void extract();
static void replace();
static void yankstr();
static void badformat();
static void prstr();
static int getachar();
static void usage();
/* static variables */
static int eflg; /* find strings in source file(s) */
static int dflg; /* use replaced string a second argument */
static int rflg; /* replace strings by function calls */
static int errflg; /* syntax error on command line */
static char *Fname; /* name of source file */
static int Lineno; /* line number in source file */
static int Posno; /* character position within line */
static int flag; /* sets when newline is encountered */
static jmp_buf to_eof;
int
main(int argc, char *argv[])
{
int ch;
while ((ch = getopt(argc, argv, "erd")) != -1)
switch (ch) {
case 'e':
if (rflg)
errflg++;
else
eflg++;
continue;
case 'r':
if (eflg)
errflg++;
else
rflg++;
continue;
case 'd':
if (eflg)
errflg++;
else
dflg++;
continue;
default:
errflg++;
}
if (optind == argc || errflg)
usage();
if (!rflg)
for (; optind < argc; optind++)
extract(argv[optind]);
else {
if (optind+1 != argc)
usage();
replace(argv[optind]);
}
return (0);
}
static void
extract(name)
char *name;
{
if (freopen(name, "r", stdin) == NULL) {
(void) fprintf(
stderr, "exstr: ERROR: couldn't open file '%s'\n", name);
exit(1);
}
Fname = name;
flag = 1;
Lineno = 0;
if (setjmp(to_eof) != 0)
return;
for (;;) {
char ch;
ch = getachar();
switch (ch) {
case '#':
if (Posno != 0)
continue;
do {
ch = getachar();
} while (isspace(ch));
if (ch == 'd')
continue;
while (getachar() != '\n');
break;
case '"':
yankstr();
break;
case '\'':
while ((ch = getachar()) != '\'')
if (ch == '\\')
ch = getachar();
break;
case '/':
ch = getachar();
if (ch == '*') {
int level = 0;
while (level != 2) {
ch = getachar();
if (level == 0 && ch == '*')
level++;
else if (level == 1 && ch == '/')
level++;
else
level = 0;
}
}
break;
}
}
}
static void
yankstr()
{
char cc;
char dbuf[BUFSIZ];
register char *dp = dbuf;
int saved_posno;
int saved_lineno;
saved_posno = Posno;
saved_lineno = Lineno;
while ((cc = getachar()) != '"') {
if (cc == '\\') {
*dp++ = cc;
cc = getachar();
}
if (cc == '\n') {
dp--;
continue;
}
*dp++ = cc;
}
*dp = 0;
prstr(dbuf, saved_lineno, saved_posno);
}
static void
prstr(cp, lineno, posno)
register char *cp;
{
if (eflg)
(void) fprintf(stdout, "%s:%d:%d:::%s\n", Fname, lineno, posno,
cp);
else
(void) fprintf(stdout, "%s:%s\n", Fname, cp);
}
static void
usage()
{
(void) fprintf(stderr, "usage: exstr [-e] files\n");
(void) fprintf(stderr, "or : exstr -r [-d] file\n");
exit(1);
}
static int
getachar()
{
int cc;
cc = getchar();
if (flag) {
Lineno++;
Posno = 0;
flag = 0;
} else
Posno++;
if (cc == EOF)
longjmp(to_eof, 1);
if (cc == '\n')
flag = 1;
return (cc);
}
static void
replace(name)
char *name;
{
char linebuf[BUFSIZ];
char *cp;
int curlineno; /* line number in strings file */
int curposno; /* character position in string file */
int savelineno = 0;
int curmsgno; /* message number in strings file */
int wrong_msg; /* invalid message number */
int cont_str = 0; /* string continues in the next line */
char *repstr;
char repbuf[BUFSIZ], *repbufp;
char curline[BUFSIZ];
char outbuf[BUFSIZ];
/* keeps track of character position within input file */
char *inp;
/* keeps track of character position within output buffer */
char *outp;
char *msgfile;
FILE *fi; /* input source file pointer */
inp = linebuf;
outp = outbuf;
linebuf[0] = '\0';
/* open input C source file */
if ((fi = fopen(name, "r")) == (FILE *)NULL) {
(void) fprintf(stderr,
"exstr: ERROR: couldn't open file '%s'\n", name);
exit(1);
}
Fname = name;
(void) fprintf(stdout, "extern char *gettxt();\n");
/* process file containing the list of strings */
while (fgets(repbuf, sizeof (repbuf), stdin) != (char *)NULL) {
wrong_msg = 0;
/* save a copy of the current line */
(void) strcpy(curline, repbuf);
/* take apart the input string */
repbufp = strchr(repbuf, ':');
if (repbufp == (char *)NULL)
badformat(curline);
*repbufp++ = '\0';
/* verify that string belongs to the input C source file */
if (strcmp(repbuf, name) != NULL)
continue;
repstr = strchr(repbufp, ':');
if (repstr == (char *)NULL)
badformat(curline);
*repstr++ = '\0';
curlineno = atoi(repbufp);
if (curlineno < savelineno) {
(void) fprintf(stderr,
"exstr: ERROR: stdin: line out of order\n");
(void) fprintf(stderr, "%s", curline);
exit(1);
}
savelineno = curlineno;
repbufp = repstr;
repstr = strchr(repbufp, ':');
if (repstr == (char *)NULL)
badformat(curline);
repstr[strlen(repstr) - 1 ] = '\0';
*repstr++ = '\0';
curposno = atoi(repbufp);
repbufp = repstr;
repstr = strchr(repbufp, ':');
if (repstr == (char *)NULL)
badformat(curline);
*repstr++ = '\0';
msgfile = repbufp;
if (strlen(msgfile) > (size_t)14 || *msgfile == '\0') {
(void) fprintf(stderr,
"exstr: ERROR: stdin: invalid message file name "
"'%s'\n", msgfile);
(void) fprintf(stderr, "%s", curline);
exit(1);
}
repbufp = repstr;
repstr = strchr(repbufp, ':');
if (repstr == (char *)NULL)
badformat(curline);
*repstr++ = '\0';
cp = repbufp;
while (*cp)
if (!isdigit(*cp++)) {
wrong_msg++;
break;
}
if (*repbufp == '\0' || wrong_msg) {
(void) fprintf(stderr, "exstr: ERROR: stdin: invalid "
"message number '%s'\n", repbufp);
(void) fprintf(stderr, "%s", curline);
exit(1);
}
curmsgno = atoi(repbufp);
/* move up to this line */
while (Lineno != curlineno) {
if (outp != outbuf) {
while (*inp != '\0')
*outp++ = *inp++;
*outp = '\0';
(void) fputs(outbuf, stdout);
} else if (*linebuf != '\0')
(void) fputs(linebuf, stdout);
outp = outbuf;
inp = linebuf;
if (fgets(linebuf,
sizeof (linebuf), fi) == (char *)NULL) {
(void) fprintf(stderr, "read error\n");
exit(1);
}
Lineno++;
Posno = 0;
}
if (Posno > curposno) {
(void) fprintf(stderr,
"Bad input record line number %d\n", Lineno);
exit(1);
}
while (Posno != curposno) {
*outp++ = *inp++;
Posno++;
}
if (*inp != '"') {
(void) fprintf(stderr, "exstr: ERROR: cannot replace "
"string '%s' in line (%d) of file (%s)\n", repstr,
Lineno, Fname);
exit(1);
}
/* check if string continues in next line */
while (inp[strlen(inp)-2] == '\\' &&
inp[strlen(inp)-1] == '\n') {
if (fgets(linebuf,
sizeof (linebuf), fi) == (char *)NULL) {
(void) fprintf(stderr, "exstr: ERROR: read "
"error in file (%s)\n", Fname);
exit(1);
}
cont_str++;
Lineno++;
}
if (cont_str) {
cp = linebuf;
while (*cp != '\0' && *cp++ != '"')
;
if (*cp == '\0') {
(void) fprintf(stderr, "exstr: ERROR: cannot "
"replace string '%s' in line (%d) of file "
"(%s)\n", repstr, Lineno, Fname);
exit(1);
}
inp = cp;
Posno = cp - linebuf;
}
if (dflg)
outp += snprintf(outp, BUFSIZ - (outp - outbuf),
"gettxt(\"%s:%d\", \"%s\")", msgfile, curmsgno,
repstr);
else
outp += snprintf(outp, BUFSIZ - (outp - outbuf),
"gettxt(\"%s:%d\", \"\")", msgfile, curmsgno);
if (!cont_str) {
inp += strlen(repstr)+2;
Posno += strlen(repstr)+2;
}
else
cont_str = 0;
}
if (outp != outbuf) {
while (*inp != '\0')
*outp++ = *inp++;
*outp = '\0';
(void) fputs(outbuf, stdout);
}
while (fgets(linebuf, sizeof (linebuf), fi) != (char *)NULL)
(void) fputs(linebuf, stdout);
(void) fclose(fi);
}
static void
badformat(line)
char *line;
{
(void) fprintf(stderr, "exstr: ERROR: stdin: Badly formatted "
"replacement string\n%s", line);
exit(1);
}