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This commit is contained in:
Justine Tunney
2020-12-01 03:43:40 -08:00
parent 3e4fd4b0ad
commit e44a0cf6f8
256 changed files with 23100 additions and 2294 deletions
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2
libc/conv/basename_n.c
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@@ -36,7 +36,7 @@ textstartup char *basename_n(const char *path, size_t size) {
if (size) {
if (isslash(path[size - 1])) {
l = size - 1;
while (isslash(path[l - 1])) --l;
while (l && isslash(path[l - 1])) --l;
if (!l) return (/*unconst*/ char *)&path[size - 1];
size = l;
}

3
libc/conv/conv.h
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@@ -51,6 +51,7 @@ long convertmicros(const struct timeval *, long) paramsnonnull() nosideeffect;
│ cosmopolitan § conversion » manipulation ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
char *dirname(char *);
char *basename(const char *) nosideeffect;
char *basename_n(const char *, size_t) nosideeffect;
bool isabspath(const char *) paramsnonnull() nosideeffect;
@@ -83,7 +84,7 @@ div_t div(int, int) pureconst;
ldiv_t ldiv(long, long) pureconst;
lldiv_t lldiv(long long, long long) pureconst;
imaxdiv_t imaxdiv(intmax_t, intmax_t) pureconst;
double RoundDecimalPlaces(double, double, double(double));
double RoundDecimalPlaces(double, double, double (*)(double));
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § conversion » optimizations ─╬─│┼

42
libc/conv/dirname.c Normal file
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@@ -0,0 +1,42 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ 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; version 2 of the License. │
│ │
│ 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 "libc/conv/conv.h"
#include "libc/str/str.h"
#define ISDELIM(c) (c == '/' || c == '\\' || c == '.')
char *dirname(char *s) {
size_t i, n;
if (!(n = strlen(s))) return s;
while (n && ISDELIM(s[n - 1])) --n;
if (n) {
while (n && !ISDELIM(s[n - 1])) --n;
if (n) {
while (n && ISDELIM(s[n - 1])) --n;
if (!n) ++n;
} else {
s[n++] = '.';
}
} else {
++n;
}
s[n] = '\0';
return s;
}