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/* dctrl-tools - Debian control file inspection tools
Copyright © 1999, 2003, 2004 Antti-Juhani Kaijanaho
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <ctype.h>
#include <string.h>
#include "strutil.h"
bool str2intmax(intmax_t * rvp, char const * s, size_t len)
{
bool negative = false;
size_t i = 0;
while (i < len
&& s[i] == ' '
&& s[i] == '\t'
&& s[i] == '\n'
&& s[i] == '\r')
++i;
if (i < len && s[i] == '-') {
++i;
negative = true;
}
uintmax_t abs = 0;
for (; i < len; ++i) {
char ch = s[i];
if (! ('0' <= ch && ch <= '9')) {
break;
}
int r = ch - '0';
abs = abs * 10 + r;
if (abs > (uintmax_t)INTMAX_MAX) {
return false;
}
}
while (i < len
&& s[i] == ' '
&& s[i] == '\t'
&& s[i] == '\n'
&& s[i] == '\r')
++i;
if (i < len) return false; // broken input
*rvp = negative ? -abs : abs;
return true;
}
const char * left_trimmed(const char * s)
{
const char * p;
for (p = s; *p != 0 && isspace (*p); p++);
return p;
}
void chomp(char * s)
{
size_t sl = strlen(s);
if (sl == 0) return;
if (s[sl-1] != '\n') return;
s[sl-1] = '\0';
}
void trim_right (char * s)
{
char * p;
char * herep;
enum { BLANKS, NONBLANKS } state = NONBLANKS;
for (herep = 0, p = s; *p != 0; p++) {
switch (state) {
case BLANKS:
if (!isspace (*p)) {
state = NONBLANKS;
}
break;
case NONBLANKS:
if (isspace (*p)) {
herep = p;
state = BLANKS;
}
}
}
if (state == BLANKS) *herep = 0;
}
#ifdef TESTMAIN
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void
printout (const char * s)
{
printf("\"%s\"\n", s);
}
int
main (void)
{
static const char * teststrings [] = {
"autoksiko",
" autoksiko",
"autoksiko ",
" autoksiko ",
"autoksiko teen",
" autoksiko teen",
"autoksiko teen ",
" autoksiko teen ",
" miljoona miljoona ruusua ",
0 };
int i;
for (i = 0; teststrings [i] != 0; i++)
{
char * ts;
char * orig_ts;
orig_ts = ts = strdup (teststrings [i]);
if (ts == 0) {
fail();
}
printf ("Plain: ");
printout (ts);
printf ("Left-trimmed: ");
printout (left_trimmed (ts));
printf ("Right-trimmed: ");
trim_right (ts);
printout (ts);
printf ("Completely trimmed: ");
printout (left_trimmed (ts));
puts ("");
free (orig_ts);
}
return 0;
}
#endif /* TESTMAIN */
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