diff options
Diffstat (limited to 'Src/Zle/zle_refresh.c')
| -rw-r--r-- | Src/Zle/zle_refresh.c | 341 |
1 files changed, 10 insertions, 331 deletions
diff --git a/Src/Zle/zle_refresh.c b/Src/Zle/zle_refresh.c index 6127c1248..dd8c26079 100644 --- a/Src/Zle/zle_refresh.c +++ b/Src/Zle/zle_refresh.c @@ -327,232 +327,6 @@ static const REFRESH_ELEMENT zr_start_ellipsis[] = { #define ZR_START_ELLIPSIS_SIZE \ ((int)(sizeof(zr_start_ellipsis)/sizeof(zr_start_ellipsis[0]))) -/* Defines standard ANSI colour names in index order */ -static const char *ansi_colours[] = { - "black", "red", "green", "yellow", "blue", "magenta", "cyan", "white", - NULL -}; - -/* Defines the available types of highlighting */ -struct highlight { - const char *name; - int mask_on; - int mask_off; -}; - -static const struct highlight highlights[] = { - { "none", 0, TXT_ATTR_ON_MASK }, - { "bold", TXTBOLDFACE, 0 }, - { "standout", TXTSTANDOUT, 0 }, - { "underline", TXTUNDERLINE, 0 }, - { NULL, 0, 0 } -}; - -/* Structure and array for holding special colour terminal sequences */ - -/* Start of escape sequence for foreground colour */ -#define TC_COL_FG_START "\033[3" -/* End of escape sequence for foreground colour */ -#define TC_COL_FG_END "m" -/* Code to reset foreground colour */ -#define TC_COL_FG_DEFAULT "9" - -/* Start of escape sequence for background colour */ -#define TC_COL_BG_START "\033[4" -/* End of escape sequence for background colour */ -#define TC_COL_BG_END "m" -/* Code to reset background colour */ -#define TC_COL_BG_DEFAULT "9" - -struct colour_sequences { - char *start; /* Escape sequence start */ - char *end; /* Escape sequence terminator */ - char *def; /* Code to reset default colour */ -}; -struct colour_sequences fg_bg_sequences[2]; - -#define COL_SEQ_FG (0) -#define COL_SEQ_BG (1) -#define COL_SEQ_COUNT (2) - -/* - * We need a buffer for colour sequence compostion. It may - * vary depending on the sequences set. However, it's inefficient - * allocating it separately every time we send a colour sequence, - * so do it once per refresh. - */ -static char *colseq_buf; - -static void -set_default_colour_sequences(void) -{ - fg_bg_sequences[COL_SEQ_FG].start = ztrdup(TC_COL_FG_START); - fg_bg_sequences[COL_SEQ_FG].end = ztrdup(TC_COL_FG_END); - fg_bg_sequences[COL_SEQ_FG].def = ztrdup(TC_COL_FG_DEFAULT); - - fg_bg_sequences[COL_SEQ_BG].start = ztrdup(TC_COL_BG_START); - fg_bg_sequences[COL_SEQ_BG].end = ztrdup(TC_COL_BG_END); - fg_bg_sequences[COL_SEQ_BG].def = ztrdup(TC_COL_BG_DEFAULT); -} - -static void -free_colour_sequences(void) -{ - int i; - - for (i = 0; i < COL_SEQ_COUNT; i++) { - zsfree(fg_bg_sequences[i].start); - zsfree(fg_bg_sequences[i].end); - zsfree(fg_bg_sequences[i].def); - } -} - -/* - * Return index of ANSI colour for which *teststrp is an abbreviation. - * Any non-alphabetic character ends the abbreviation. - */ - -static int -match_colour(const char **teststrp) -{ - const char *teststr = *teststrp, *end, **cptr; - int len; - - for (end = teststr; ialpha(*end); end++) - ; - len = end - teststr; - *teststrp = end; - - for (cptr = ansi_colours; *cptr; cptr++) { - if (!strncmp(teststr, *cptr, len)) - return cptr - ansi_colours; - } - - return -1; -} - -static void -set_colour_code(char *str, char **var) -{ - char *keyseq; - int len; - - zsfree(*var); - keyseq = getkeystring(str, &len, GETKEYS_BINDKEY, NULL); - *var = metafy(keyseq, len, META_DUP); -} - - -/* - * Match a set of highlights in the given teststr. - * Set *on_var to reflect the values found. - */ - -static void -match_highlight(const char *teststr, int *on_var) -{ - int found = 1; - - *on_var = 0; - while (found && *teststr) { - const struct highlight *hl; - - found = 0; - if (strpfx("fg=", teststr) || strpfx("bg=", teststr)) { - int is_fg = (teststr[0] == 'f'); - int colour, shft, on, named, tc; - - teststr += 3; - if ((named = ialpha(*teststr))) - colour = match_colour(&teststr); - else - colour = (int)zstrtol(teststr, (char **)&teststr, 10); - if (*teststr == ',') - teststr++; - else if (*teststr) - break; - found = 1; - /* skip out of range colours but keep scanning attributes */ - if (colour < 0 || colour >= 256) - continue; - if (is_fg) { - shft = TXT_ATTR_FG_COL_SHIFT; - on = TXTFGCOLOUR; - tc = TCFGCOLOUR; - } else { - shft = TXT_ATTR_BG_COL_SHIFT; - on = TXTBGCOLOUR; - tc = TCBGCOLOUR; - } - /* - * Try termcap for numbered characters if posible. - * Don't for named characters, since our best bet - * of getting the names right is with ANSI sequences. - */ - if (!named && tccan(tc)) { - if (tccolours >= 0 && colour >= tccolours) { - /* - * Out of range of termcap colours. - * Can we assume ANSI colours work? - */ - if (colour > 7) - continue; /* No. */ - } else { - /* - * We can handle termcap colours and the number - * is in range, so use termcap. - */ - *on_var |= is_fg ? TXT_ATTR_FG_TERMCAP : - TXT_ATTR_BG_TERMCAP; - } - } - *on_var |= on | (colour << shft); - } else { - for (hl = highlights; hl->name; hl++) { - if (strpfx(hl->name, teststr)) { - const char *val = teststr + strlen(hl->name); - - if (*val == ',') - val++; - else if (*val) - break; - - *on_var |= hl->mask_on; - *on_var &= ~hl->mask_off; - teststr = val; - found = 1; - } - } - } - } -} - - -/* Allocate buffer for colour code composition */ - -static void -set_colseq_buf(void) -{ - int lenfg, lenbg, len; - - lenfg = strlen(fg_bg_sequences[COL_SEQ_FG].def); - /* always need 1 character for non-default code */ - if (lenfg < 1) - lenfg = 1; - lenfg += strlen(fg_bg_sequences[COL_SEQ_FG].start) + - strlen(fg_bg_sequences[COL_SEQ_FG].end); - - lenbg = strlen(fg_bg_sequences[COL_SEQ_BG].def); - /* always need 1 character for non-default code */ - if (lenbg < 1) - lenbg = 1; - lenbg += strlen(fg_bg_sequences[COL_SEQ_BG].start) + - strlen(fg_bg_sequences[COL_SEQ_BG].end); - - len = lenfg > lenbg ? lenfg : lenbg; - colseq_buf = (char *)zalloc(len+1); -} - /* * Parse the variable zle_highlight to decide how to highlight characters * and regions. Set defaults for anything not explicitly covered. @@ -599,18 +373,6 @@ zle_set_highlight(void) } else if (strpfx("isearch:", *atrs)) { match_highlight(*atrs + 8, &(region_highlights[1].atr)); isearch_atr_on_set = 1; - } else if (strpfx("fg_start_code:", *atrs)) { - set_colour_code(*atrs + 14, &fg_bg_sequences[COL_SEQ_FG].start); - } else if (strpfx("fg_default_code:", *atrs)) { - set_colour_code(*atrs + 16, &fg_bg_sequences[COL_SEQ_FG].def); - } else if (strpfx("fg_end_code:", *atrs)) { - set_colour_code(*atrs + 12, &fg_bg_sequences[COL_SEQ_FG].end); - } else if (strpfx("bg_start_code:", *atrs)) { - set_colour_code(*atrs + 14, &fg_bg_sequences[COL_SEQ_BG].start); - } else if (strpfx("bg_default_code:", *atrs)) { - set_colour_code(*atrs + 16, &fg_bg_sequences[COL_SEQ_BG].def); - } else if (strpfx("bg_end_code:", *atrs)) { - set_colour_code(*atrs + 12, &fg_bg_sequences[COL_SEQ_BG].end); } } } @@ -623,7 +385,7 @@ zle_set_highlight(void) if (!isearch_atr_on_set) region_highlights[1].atr = TXTUNDERLINE; - set_colseq_buf(); + allocate_colour_buffer(); } @@ -631,10 +393,7 @@ zle_set_highlight(void) static void zle_free_highlight(void) { - DPUTS(!colseq_buf, "Freeing colour sequence buffer without alloc"); - /* Free buffer for colour code composition */ - free(colseq_buf); - colseq_buf = NULL; + free_colour_buffer(); } /* @@ -663,21 +422,12 @@ get_region_highlight(UNUSED(Param pm)) arrsize--; rhp++, arrp++) { char digbuf1[DIGBUFSIZE], digbuf2[DIGBUFSIZE]; - int atrlen = 0, alloclen, done1; - const struct highlight *hp; + int atrlen = 0, alloclen; sprintf(digbuf1, "%d", rhp->start); sprintf(digbuf2, "%d", rhp->end); - for (hp = highlights; hp->name; hp++) { - if (hp->mask_on & rhp->atr) { - if (atrlen) - atrlen++; /* comma */ - atrlen += strlen(hp->name); - } - } - if (atrlen == 0) - atrlen = 4; /* none */ + atrlen = output_highlight(rhp->atr, NULL); alloclen = atrlen + strlen(digbuf1) + strlen(digbuf2) + 3; /* 2 spaces, 1 0 */ if (rhp->flags & ZRH_PREDISPLAY) @@ -693,17 +443,7 @@ get_region_highlight(UNUSED(Param pm)) sprintf(*arrp, "%s%s %s ", (rhp->flags & ZRH_PREDISPLAY) ? "P" : "", digbuf1, digbuf2); - if (atrlen) { - for (hp = highlights, done1 = 0; hp->name; hp++) { - if (hp->mask_on & rhp->atr) { - if (done1) - strcat(*arrp, ","); - strcat(*arrp, hp->name); - done1 = 1; - } - } - } else - strcat(*arrp, "none"); + (void)output_highlight(rhp->atr, *arrp + strlen(*arrp)); } *arrp = '\0'; return retarr; @@ -1147,56 +887,6 @@ snextline(Rparams rpms) } -static void -setcolourattribute(int colour, int fg_bg, int tc, int def, - int use_termcap) -{ - char *ptr; - int do_free; - - if ((do_free = (colseq_buf == NULL))) { - /* This can happen when moving the cursor in trashzle() */ - set_colseq_buf(); - } - /* - * If we're not restoring the default, and either have a - * colour value that is too large for ANSI, or have been told - * to use the termcap sequence, try to use the termcap sequence. - * - * We have already sanitised the values we allow from the - * highlighting variables, so much of this shouldn't be - * necessary at this point, but we might as well be safe. - */ - if (!def && (colour > 7 || use_termcap)) { - /* - * We can if it's available, and either we couldn't get - * the maximum number of colours, or the colour is in range. - */ - if (tccan(tc) && (tccolours < 0 || colour < tccolours)) - tcoutarg(tc, colour); - /* for 0 to 7 assume standard ANSI works, otherwise it won't. */ - if (colour > 7) - return; - } - - strcpy(colseq_buf, fg_bg_sequences[fg_bg].start); - - ptr = colseq_buf + strlen(colseq_buf); - if (def) { - strcpy(ptr, fg_bg_sequences[fg_bg].def); - while (*ptr) - ptr++; - } else - *ptr++ = colour + '0'; - strcpy(ptr, fg_bg_sequences[fg_bg].end); - tputs(colseq_buf, 1, putshout); - - if (do_free) { - free(colseq_buf); - colseq_buf = NULL; - } -} - /**/ static void settextattributes(int atr) @@ -1213,18 +903,10 @@ settextattributes(int atr) tsetcap(TCSTANDOUTBEG, 0); if (txtchangeisset(atr, TXTUNDERLINE)) tsetcap(TCUNDERLINEBEG, 0); - if (txtchangeisset(atr, TXTFGCOLOUR|TXTNOFGCOLOUR)) { - setcolourattribute(txtchangeget(atr, TXT_ATTR_FG_COL), - COL_SEQ_FG, TCFGCOLOUR, - txtchangeisset(atr, TXTNOFGCOLOUR), - txtchangeisset(atr, TXT_ATTR_FG_TERMCAP)); - } - if (txtchangeisset(atr, TXTBGCOLOUR|TXTNOBGCOLOUR)) { - setcolourattribute(txtchangeget(atr, TXT_ATTR_BG_COL), - COL_SEQ_BG, TCBGCOLOUR, - txtchangeisset(atr, TXTNOBGCOLOUR), - txtchangeisset(atr, TXT_ATTR_BG_TERMCAP)); - } + if (txtchangeisset(atr, TXTFGCOLOUR|TXTNOFGCOLOUR)) + set_colour_attribute(atr, COL_SEQ_FG, 0); + if (txtchangeisset(atr, TXTBGCOLOUR|TXTNOBGCOLOUR)) + set_colour_attribute(atr, COL_SEQ_BG, 0); } #ifdef MULTIBYTE_SUPPORT @@ -1433,7 +1115,7 @@ zrefresh(void) tsetcap(TCSTANDOUTEND, 0); tsetcap(TCUNDERLINEEND, 0); /* cheat on attribute unset */ - txtunset(TXTBOLDFACE|TXTSTANDOUT|TXTUNDERLINE|TXTDIRTY); + txtunset(TXTBOLDFACE|TXTSTANDOUT|TXTUNDERLINE); if (trashedzle) reexpandprompt(); @@ -2942,7 +2624,6 @@ singmoveto(int pos) void zle_refresh_boot(void) { - set_default_colour_sequences(); } /* Provided for unloading the module in a modular fashion */ @@ -2956,6 +2637,4 @@ zle_refresh_finish(void) if (region_highlights) zfree(region_highlights, sizeof(struct region_highlight) * n_region_highlights); - - free_colour_sequences(); } |