tutorials/kilo
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This commit is contained in:
Timothy Warren 2019-08-20 16:53:28 -04:00
parent 4010b78fd7
commit 2f768daf31
1 changed files with 24 additions and 4 deletions
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28
kilo.c
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@ -40,6 +40,7 @@ enum editorKey {
enum editorHighlight {
HL_NORMAL = 0,
HL_COMMENT,
HL_STRING,
HL_NUMBER,
HL_MATCH
@ -53,6 +54,7 @@ enum editorHighlight {
struct editorSyntax {
char *filetype;
char **filematch;
char *singleline_comment_start;
int flags;
};
@ -84,12 +86,14 @@ struct editorConfig {
struct editorConfig E;
/*** filetypes ***/
char *C_HL_extensions[] = { ".c", ".h", ".cpp", NULL };
struct editorSyntax HLDB[] = {
{
"c",
C_HL_extensions,
"//",
HL_HIGHLIGHT_NUMBERS | HL_HIGHLIGHT_STRINGS
},
};
@ -154,6 +158,7 @@ int editorReadKey()
}
}
// The character code starts with the escape sequence (\x1b)
if (c == '\x1b')
{
char seq[3];
@ -298,6 +303,9 @@ void editorUpdateSyntax(erow *row)
return;
}
char *scs = E.syntax->singleline_comment_start;
int scs_len = scs ? strlen(scs) : 0;
int prev_sep = 1;
int in_string = 0;
@ -307,6 +315,15 @@ void editorUpdateSyntax(erow *row)
char c = row->render[i];
unsigned char prev_hl = (i > 0) ? row->hl[i - 1] : HL_NORMAL;
if (scs_len && ! in_string)
{
if ( ! strncmp(&row->render[i], scs, scs_len))
{
memset(&row->hl[i], HL_COMMENT, row->rsize - i);
break;
}
}
if (E.syntax->flags & HL_HIGHLIGHT_STRINGS)
{
if (in_string)
@ -360,14 +377,17 @@ int editorSyntaxToColor(int hl)
{
switch (hl)
{
case HL_COMMENT:
return 36; // cyan
case HL_STRING:
return 35;
return 35; // magenta
case HL_NUMBER:
return 31;
return 31; // red
case HL_MATCH:
return 34;
return 34; // blue
default:
return 37;
@ -463,7 +483,7 @@ void editorUpdateRow(erow *row)
}
free(row->render);
row->render = malloc(row->size + tabs*(KILO_TAB_STOP - 1) + 1);
row->render = malloc(row->size + tabs *(KILO_TAB_STOP - 1) + 1);
int idx = 0;
for (j = 0; j < row->size; j++)