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Binary search terminfo funcname => termkey sym conversion, rather than linear

This commit is contained in:
Paul LeoNerd Evans 2008-10-10 00:44:13 +01:00
parent fd769d621e
commit 2ceb64261a
1 changed files with 18 additions and 3 deletions
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21
driver-ti.c
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@ -125,6 +125,7 @@ static struct {
int mods; int mods;
} funcs[] = } funcs[] =
{ {
/* THIS LIST MUST REMAIN SORTED! */
{ "backspace", TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_BACKSPACE, 0 }, { "backspace", TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_BACKSPACE, 0 },
{ "begin", TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_BEGIN, 0 }, { "begin", TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_BEGIN, 0 },
{ "btab", TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_TAB, TERMKEY_KEYMOD_SHIFT }, { "btab", TERMKEY_TYPE_KEYSYM, TERMKEY_SYM_TAB, TERMKEY_KEYMOD_SHIFT },
@ -147,15 +148,29 @@ static struct {
static int funcname2keysym(const char *funcname, termkey_type *typep, termkey_keysym *symp, int *modmaskp, int *modsetp) static int funcname2keysym(const char *funcname, termkey_type *typep, termkey_keysym *symp, int *modmaskp, int *modsetp)
{ {
int i; // Binary search
for(i = 0; funcs[i].funcname; i++) {
if(strcmp(funcname, funcs[i].funcname) == 0) { int start = 0;
int end = sizeof(funcs)/sizeof(funcs[0]); // is "one past" the end of the range
while(1) {
int i = (start+end) / 2;
int cmp = strcmp(funcname, funcs[i].funcname);
if(cmp == 0) {
*typep = funcs[i].type; *typep = funcs[i].type;
*symp = funcs[i].sym; *symp = funcs[i].sym;
*modmaskp = funcs[i].mods; *modmaskp = funcs[i].mods;
*modsetp = funcs[i].mods; *modsetp = funcs[i].mods;
return 1; return 1;
} }
else if(end == start + 1)
// That was our last choice and it wasn't it - not found
break;
else if(cmp > 0)
start = i;
else
end = i;
} }
if(funcname[0] == 'f' && isdigit(funcname[1])) { if(funcname[0] == 'f' && isdigit(funcname[1])) {