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[bim] rudimentary numeral highlighting

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This commit is contained in:
K. Lange 2018-08-18 11:17:04 +09:00
parent 072520bf01
commit f69d965749
1 changed files with 67 additions and 8 deletions
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75
apps/bim.c
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@ -89,6 +89,7 @@
#define FLAG_COMMENT 3
#define FLAG_TYPE 4
#define FLAG_PRAGMA 5
#define FLAG_NUMERAL 6
#define FLAG_NORM_MAX 15
@ -112,6 +113,7 @@ char * flag_to_color(int flag) {
return COLOR_COMMENT;
case FLAG_TYPE:
return COLOR_TYPE;
case FLAG_NUMERAL:
case FLAG_PRAGMA:
return COLOR_PRAGMA;
default:
@ -323,13 +325,43 @@ static char * syn_c_types[] = {
};
static int syn_c_extended(line_t * line, int i, int c, int last, int * out_left) {
(void)last;
if (i == 0 && c == '#') {
*out_left = line->actual+1;
return FLAG_PRAGMA;
}
if ((!last || !syn_c_iskeywordchar(last)) && (i < line->actual - 3) &&
line->text[i].codepoint == 'N' &&
line->text[i+1].codepoint == 'U' &&
line->text[i+2].codepoint == 'L' &&
line->text[i+3].codepoint == 'L' &&
(i == line->actual - 4 || !syn_c_iskeywordchar(line->text[i+4].codepoint))) {
*out_left = 3;
return FLAG_NUMERAL;
}
if ((!last || !syn_c_iskeywordchar(last)) && isdigit(c)) {
if (c == '0' && i < line->actual - 1 && line->text[i+1].codepoint == 'x') {
int j = 2;
for (; i + j < line->actual && isxdigit(line->text[i+j].codepoint); ++j);
if (i + j < line->actual && syn_c_iskeywordchar(line->text[i+j].codepoint)) {
return FLAG_NONE;
}
*out_left = j - 1;
return FLAG_NUMERAL;
} else {
int j = 1;
while (i + j < line->actual && isdigit(line->text[i+j].codepoint)) {
j++;
}
if (i + j < line->actual && syn_c_iskeywordchar(line->text[i+j].codepoint)) {
return FLAG_NONE;
}
*out_left = j - 1;
return FLAG_NUMERAL;
}
}
if (c == '/') {
if (i < line->actual - 1 && line->text[i+1].codepoint == '/') {
*out_left = (line->actual + 1) - i;
@ -353,14 +385,14 @@ static int syn_c_extended(line_t * line, int i, int c, int last, int * out_left)
}
if (c == '\'') {
if (i < line->actual + 3 && line->text[i+1].codepoint == '\\' &&
if (i < line->actual - 3 && line->text[i+1].codepoint == '\\' &&
line->text[i+3].codepoint == '\'') {
*out_left = 3;
return FLAG_PRAGMA; /* Number? */
return FLAG_NUMERAL;
}
if (i < line->actual + 2 && line->text[i+2].codepoint == '\'') {
if (i < line->actual - 2 && line->text[i+2].codepoint == '\'') {
*out_left = 2;
return FLAG_PRAGMA; /* Number? */
return FLAG_NUMERAL;
}
}
@ -420,7 +452,6 @@ static char * syn_py_types[] = {
};
static int syn_py_extended(line_t * line, int i, int c, int last, int * out_left) {
(void)last;
if (i == 0 && c == 'i') {
/* Check for import */
@ -450,6 +481,28 @@ static int syn_py_extended(line_t * line, int i, int c, int last, int * out_left
}
}
if ((!last || !syn_c_iskeywordchar(last)) && isdigit(c)) {
if (c == '0' && i < line->actual - 1 && line->text[i+1].codepoint == 'x') {
int j = 2;
for (; i + j < line->actual && isxdigit(line->text[i+j].codepoint); ++j);
if (i + j < line->actual && syn_c_iskeywordchar(line->text[i+j].codepoint)) {
return FLAG_NONE;
}
*out_left = j - 1;
return FLAG_NUMERAL;
} else {
int j = 1;
while (i + j < line->actual && isdigit(line->text[i+j].codepoint)) {
j++;
}
if (i + j < line->actual && syn_c_iskeywordchar(line->text[i+j].codepoint)) {
return FLAG_NONE;
}
*out_left = j - 1;
return FLAG_NUMERAL;
}
}
if (line->text[i].codepoint == '\'') {
if (i + 2 < line->actual && line->text[i+1].codepoint == '\'' && line->text[i+2].codepoint == '\'') {
/* Begin multiline */
@ -681,6 +734,8 @@ void recalculate_syntax(line_t * line, int offset) {
}
for (int i = 0; i < line->actual; last = line->text[i++].codepoint) {
if (!left) state = 0;
if (state) {
/* Currently hilighting, have `left` characters remaining with this state */
left--;
@ -1860,7 +1915,11 @@ void try_quit(void) {
for (int i = 0; i < buffers_len; i++ ) {
buffer_t * _env = buffers[i];
if (_env->modified) {
render_error("Modifications made to file `%s` in tab %d. Aborting.", _env->file_name, i+1);
if (_env->file_name) {
render_error("Modifications made to file `%s` in tab %d. Aborting.", _env->file_name, i+1);
} else {
render_error("Unsaved new file in tab %d. Aborting.", i+1);
}
return;
}
}