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read patterns (deprecated) use new auxlib's buffer system

This commit is contained in:
Roberto Ierusalimschy 2000-09-12 10:58:37 -03:00
parent 5d69960734
commit c1f725ba4a
1 changed files with 6 additions and 3 deletions
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9
liolib.c
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@ -1,5 +1,5 @@
/*
** $Id: liolib.c,v 1.79 2000/09/11 20:29:27 roberto Exp roberto $
** $Id: liolib.c,v 1.80 2000/09/12 13:48:34 roberto Exp roberto $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
@ -246,6 +246,8 @@ static int io_appendto (lua_State *L) {
static int read_pattern (lua_State *L, FILE *f, const char *p) {
int inskip = 0; /* {skip} level */
int c = NEED_OTHER;
luaL_Buffer b;
luaL_buffinit(L, &b);
while (*p != '\0') {
switch (*p) {
case '{':
@ -263,7 +265,7 @@ static int read_pattern (lua_State *L, FILE *f, const char *p) {
if (c == NEED_OTHER) c = getc(f);
m = (c==EOF) ? 0 : luaI_singlematch(c, p, ep);
if (m) {
if (!inskip) luaL_putchar(L, c);
if (!inskip) luaL_putchar(&b, c);
c = NEED_OTHER;
}
switch (*ep) {
@ -274,7 +276,7 @@ static int read_pattern (lua_State *L, FILE *f, const char *p) {
while (m) { /* reads the same item until it fails */
c = getc(f);
m = (c==EOF) ? 0 : luaI_singlematch(c, p, ep);
if (m && !inskip) luaL_putchar(L, c);
if (m && !inskip) luaL_putchar(&b, c);
}
/* go through to continue reading the pattern */
case '?': /* optional */
@ -288,6 +290,7 @@ static int read_pattern (lua_State *L, FILE *f, const char *p) {
}
} break_while:
if (c != NEED_OTHER) ungetc(c, f);
luaL_pushresult(&b); /* close buffer */
return (*p == '\0');
}