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Housekeeping

This commit is contained in:
Devine Lu Linvega 2024-04-24 15:34:11 -07:00
parent 399ac8dd17
commit 5ab8e10a6b
1 changed files with 14 additions and 23 deletions
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37
src/modal.c
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@ -153,54 +153,45 @@ find_register(Rule *r, char reg)
{ {
int i; int i;
for(i = 0; i < (int)r->ptr; i++) for(i = 0; i < (int)r->ptr; i++)
if(r->key[i] == reg) if(r->key[i] == reg) return i;
return i;
return -1; return -1;
} }
static char * static char *
compile_rule(Rule *r, int id, char *src) compile_rule(Rule *r, int id, char *src)
{ {
int wrapped, reg;
char c, *cap; char c, *cap;
int wrapped, reg;
r->id = id, r->ptr = 0, r->a = &empty, r->b = &empty; r->id = id, r->ptr = 0, r->a = &empty, r->b = &empty;
/* phase: left */ /* phase: left */
while((c = *src) && c == ' ') src++; while((c = *src) && c == ' ') src++;
if(c == ')' || (c == '<' && src[1] == '>')) return src; if(c == ')' || (c == '<' && src[1] == '>')) return src;
r->a = dict_; r->a = dict_, cap = walk(src), wrapped = c == '(';
cap = walk(src);
wrapped = c == '(';
if(wrapped) src++, cap--; if(wrapped) src++, cap--;
while(src < cap) { while(src < cap) {
if(*src == '?') { c = *src, *dict_++ = *src++;
*dict_++ = *src++; if(c == '?') {
reg = find_register(r, *src); reg = find_register(r, *src);
if(reg < 0 && *src != '(') if(reg == -1 && *src != '(')
r->key[r->ptr] = *src, reg = r->ptr++; r->key[r->ptr] = *src, reg = r->ptr++;
*dict_++ = '0' + reg; *dict_++ = '0' + reg;
} else
*dict_++ = *src++;
} }
src += wrapped; }
*dict_++ = 0; src += wrapped, *dict_++ = 0;
/* phase: right */ /* phase: right */
while((c = *src) && c == ' ') src++; while((c = *src) && c == ' ') src++;
if(c == ')' || (c == '<' && src[1] == '>')) return src; if(c == ')' || (c == '<' && src[1] == '>')) return src;
r->b = dict_; r->b = dict_, cap = walk(src), wrapped = c == '(';
cap = walk(src);
wrapped = c == '(';
if(wrapped) src++, cap--; if(wrapped) src++, cap--;
while(src < cap) { while(src < cap) {
if(*src == '?') { c = *src, *dict_++ = *src++;
*dict_++ = *src++; if(c == '?') {
reg = find_register(r, *src); reg = find_register(r, *src);
*dict_++ = reg >= 0 ? ('0' + reg) : *src; *dict_++ = reg != -1 ? '0' + reg : *src;
src++; src++;
} else
*dict_++ = *src++;
} }
src += wrapped; }
*dict_++ = 0; src += wrapped, *dict_++ = 0;
return src; return src;
} }