ref: 57f8b3d1acf273a88568c49d0b83b6863485b9e0
dir: /sys/src/cmd/wikifs/util.c/
#include <u.h> #include <libc.h> #include <bio.h> #include <String.h> #include <ctype.h> #include <thread.h> #include "wiki.h" void* erealloc(void *v, ulong n) { v = realloc(v, n); if(v == nil) sysfatal("out of memory reallocating %lud", n); setmalloctag(v, getcallerpc(&v)); return v; } void* emalloc(ulong n) { void *v; v = malloc(n); if(v == nil) sysfatal("out of memory allocating %lud", n); memset(v, 0, n); setmalloctag(v, getcallerpc(&n)); return v; } char* estrdup(char *s) { int l; char *t; if (s == nil) return nil; l = strlen(s)+1; t = emalloc(l); memmove(t, s, l); setmalloctag(t, getcallerpc(&s)); return t; } char* estrdupn(char *s, int n) { int l; char *t; l = strlen(s); if(l > n) l = n; t = emalloc(l+1); memmove(t, s, l); t[l] = '\0'; setmalloctag(t, getcallerpc(&s)); return t; } char* strlower(char *s) { char *p; for(p=s; *p; p++) if('A' <= *p && *p <= 'Z') *p += 'a'-'A'; return s; } String* s_appendsub(String *s, char *p, int n, Sub *sub, int nsub) { int i, m; char *q, *r, *ep; ep = p+n; while(p<ep){ q = ep; m = -1; for(i=0; i<nsub; i++){ if(sub[i].sub && (r = strstr(p, sub[i].match)) && r < q){ q = r; m = i; } } s = s_nappend(s, p, q-p); p = q; if(m >= 0){ s = s_append(s, sub[m].sub); p += strlen(sub[m].match); } } return s; } String* s_appendlist(String *s, ...) { char *x; va_list arg; va_start(arg, s); while(x = va_arg(arg, char*)) s = s_append(s, x); va_end(arg); return s; } int opentemp(char *template) { int fd, i; char *p; p = estrdup(template); fd = -1; for(i=0; i<10; i++){ mktemp(p); if(access(p, 0) < 0 && (fd=create(p, ORDWR|ORCLOSE, 0444)) >= 0) break; strcpy(p, template); } if(fd >= 0) strcpy(template, p); free(p); return fd; }