diff options
Diffstat (limited to 'spectro/disptechs.c')
| -rw-r--r--[-rwxr-xr-x] | spectro/disptechs.c | 109 |
1 files changed, 62 insertions, 47 deletions
diff --git a/spectro/disptechs.c b/spectro/disptechs.c index d44519c..70e150f 100755..100644 --- a/spectro/disptechs.c +++ b/spectro/disptechs.c @@ -56,7 +56,7 @@ /* We deliberately duplicate the selection characters, */ /* because it's not usual to offer the whole list, just */ -/* a sub-set, which may not clash. */ +/* a sub-set which may not clash. */ /* disptechs_set_sel() should be used to present */ /* unique selectors. */ static disptech_info disptech_info_array[] = { @@ -387,52 +387,72 @@ disptech_info *disptech_get_strid(char *strid) { so we need to do three passes through all the selections. */ -/* Set the selection characters. */ -/* Return NZ if we have not set all selectors */ -/* If a selector is set, its index will be set in usels[], */ -/* and any remaining selection characters deleted. */ -/* If flag == 0, set from just first suggested selector */ -/* If flag == 1, set from just suggested selector */ +/* Append the selection characters. */ +/* If a selector is set, its index will be set in usels[]. */ +/* Remove any used selectors from isel[]. */ +/* If flag == 0, set from just first suggested selector. */ +/* If flag == 1, set from just suggested selectors. */ /* If flag == 2, set from suggested and fallback selectors */ -/* If flag == 3, set from suggested and fallback selectors, and set unset to nul */ -int disptechs_set_sel( +/* If flag == 3, append from suggested selectors */ +void disptechs_set_sel( int flag, /* See above */ int ix, /* Index of entry being set */ - char *sel, /* Pointer to string list of suggested selectors, */ - /* return a single unique selector in string. */ + char *osel, /* Append unique selectors to this string. */ + char *isel, /* Pointer to string list of suggested selectors, */ char *usels, /* char[256] initially -1, to track used selector entry index */ int *k, /* Index of next available selector in asels */ char *asels /* String list of fallback selectors to choose from, in order. */ ) { - char *d, *s, i; + char *iisel = isel, i; -//a1logd(g_log, 1,"disptechs_set_sel: flag %d, ix %d, sel '%s', k %d\n",flag, ix,sel,*k); +//a1logd(g_log, 1,"disptechs_set_sel: flag %d, ix %d, osel '%s', isel '%s', k %d\n",flag, ix,osel,isel,*k); - /* See if this has already been allocated */ - if (usels[*sel] == ix) { -//a1logd(g_log, 1," set OK\n"); - return 0; /* Nothing to do */ + if (flag != 3) { + /* See if we already have a selecor character */ + if (osel[0] != '\000') { +//a1logd(g_log, 1," already set OK\n"); + return; + } + } else { + if (isel[0] == '\000') { +//a1logd(g_log, 1," nothing to set from\n"); + return; /* Nothing to set from */ + } + + /* Get ready to append */ + osel += strlen(osel); } - /* Set from the suggested selectors */ - for (i = 0, s = sel; *s != '\000'; s++, i++) { + /* Set or add from the first unsed suggested selectors */ + for (i = 0; *isel != '\000'; isel++, i++) { if (flag == 0 && i > 0) { //a1logd(g_log, 1," run out of primaries\n"); break; /* Looked at primary */ } - if (usels[*s] == ((char)-1)) { /* If this selector is not currently used */ -//a1logd(g_log, 1," set to '%c' at %d\n", *s, i); - sel[0] = *s; /* Use it */ - sel[1] = '\000'; - usels[*s] = ix; - return 0; + if (usels[*isel] == ((char)-1)) { /* If this selector is not currently used */ +//a1logd(g_log, 1," added to '%c' from %d\n", *isel, i); + osel[0] = *isel; /* Use it */ + osel[1] = '\000'; + usels[osel[0]] = ix; + + /* Remove all used/discarded from isel, in case we are called again. */ + for (isel++; ;isel++, iisel++) { + *iisel = *isel; + if (*isel == '\000') + break; + } + return; } -//a1logd(g_log, 1," sel '%c' at %d is used by ix %d\n", *s, i, usels[*s]); +//a1logd(g_log, 1," sel '%c' at %d is used by ix %d\n", *isel, i, usels[*isel]); } - if (flag <= 2) { -//a1logd(g_log, 1," returning unset\n"); - return 1; + /* If we get here, we haven't managed to add anything from the remaining */ + /* selectors, so mark the candidate list as empty: */ + iisel[0] = '\000'; + + if (flag != 2) { +//a1logd(g_log, 1," returning without add\n"); + return; } /* Get the next unused char in fallback list */ @@ -442,22 +462,16 @@ int disptechs_set_sel( } if (asels[*k] != '\000') { //a1logd(g_log, 1," set int to fallback '%c' at %d\n", asels[*k], *k); - sel[0] = asels[*k]; - sel[1] = '\000'; - usels[sel[0]] = ix; + osel[0] = asels[*k]; + osel[1] = '\000'; + usels[osel[0]] = ix; (*k)++; - return 0; - } - - /* Set any unset to nul */ - if (flag >= 3) { -//a1logd(g_log, 1," clearing\n"); - sel[0] = '\000'; + return; } -//a1logd(g_log, 1," failed\n"); - /* If we got here, we failed */ - return 1; +//a1logd(g_log, 1," returning after fallback without add\n"); + /* If we got here, we failed to add a selector */ + return; } /* Return the display tech list with unique lsel lectors */ @@ -474,18 +488,19 @@ disptech_info *disptech_get_list() { /* Add entries from the static list and their primary selectors */ for (i = 0; list[i].dtech != disptech_end; i++) { -//a1logd(1,"tech[%d] '%s' sels = '%s'\n",i,list[i].desc,list[i].sel); - strcpy(list[i].lsel, list[i].sel); - disptechs_set_sel(0, i, list[i].lsel, usels, &k, asels); +//a1logd(g_log,1,"tech[%d] '%s' sels = '%s'\n",i,list[i].desc,list[i].sel); + strcpy(list[i].isel, list[i].sel); + list[i].lsel[0] = '\000'; + disptechs_set_sel(0, i, list[i].lsel, list[i].isel, usels, &k, asels); } /* Set selectors from secondary */ for (i = 0; list[i].dtech != disptech_end; i++) - disptechs_set_sel(1, i, list[i].lsel, usels, &k, asels); + disptechs_set_sel(1, i, list[i].lsel, list[i].isel, usels, &k, asels); /* Set remainder from fallback */ for (i = 0; list[i].dtech != disptech_end; i++) - disptechs_set_sel(3, i, list[i].lsel, usels, &k, asels); + disptechs_set_sel(2, i, list[i].lsel, list[i].isel, usels, &k, asels); return list; } |