// -------------------
// ### Definitions ###
// -------------------
-typedef void (*attribute_callback_t)(const char * const string,
- const int length,
- void * const attributes);
-
-typedef struct {
- char * key;
- attribute_callback_t callback;
- UT_hash_handle hh;
-} display_t;
-display_t * display_table = NULL;
-
-typedef struct {
- void * attributes;
- struct hl_group_t * link;
-} hl_group_t;
typedef enum {
KEYSYMBOL,
} token_type_t;
typedef struct {
- hl_group_t * hl;
- token_type_t t;
- char* syntax;
+ char * key;
+ attribute_callback_t callback;
+ UT_hash_handle hh;
+} display_t;
+
+typedef struct {
+ void * attributes;
+ struct hl_group_t * link;
+} hl_group_t;
+
+typedef struct {
+ hl_group_t * hl;
+ token_type_t t;
+ char * syntax;
} token_t;
-/* Temp solution
- * this should be dynamic
- */
+typedef void (*attribute_callback_t) (const char * const string,
+ const int length,
+ void * const attributes);
+
+// GLOBALS
+
token_t * token_table[1000];
int token_table_top = 0;
-
+display_t * display_table = NULL;
// --------------------------------
// ### Constructors/Destructors ###
// --------------------------------
+
void new_display_mode(display_t * mode) {
HASH_ADD_STR(display_table,
key,
mode);
}
-int free_token(token_t * token){
- /* XXX: since hl could be shared,
- * this might free an already freed object
- * when invoked from a loop
- */
+int free_token(token_t * token) {
free(token->hl);
free(token->syntax);
+
return 0;
}
-int append_token(token_t * token){
+int append_token(token_t * token) {
token_table[token_table_top++] = token;
+
return 0;
}
token_t * new_symbol_token(const char * const word,
hl_group_t * const g) {
-
char * new_word = strdup(word);
token_t * mt = (token_t*)malloc(sizeof(token_t));
- mt->hl = g;
- mt->t = KEYSYMBOL;
+
+ mt->hl = g;
+ mt->t = KEYSYMBOL;
mt->syntax = new_word;
+
append_token(mt);
- return mt;
+ return mt;
}
int new_symbol_tokens(const char * const * symbols,
hl_group_t * const g) {
-
int i = 0;
+
while (*symbols) {
- if(new_symbol_token(*symbols, g)){
+ if(new_symbol_token(*symbols, g)) {
++i;
}
++symbols;
int new_char_tokens(const char * characters,
hl_group_t * const g) {
- int i = 0;
- char buffer[2];
+ int i = 0;
+ char buffer[2] = "";
+
buffer[1] = '\00';
- for(const char * s = characters; *s != '\00'; s++){
+
+ for(const char * s = characters; *s != '\0'; s++) {
buffer[0] = *s;
- if(new_symbol_token(buffer, g)){
+ if(new_symbol_token(buffer, g)) {
++i;
}
}
+
return i;
}
token_t * new_keyword_token(const char * const word,
hl_group_t * const g) {
+ size_t word_length = strlen(word);
+ char * new_word = (char*)malloc(word_length + 4 + 1);
- size_t word_length = strlen(word);
- char * new_word = (char*)malloc(word_length + 4 + 1);
memcpy(new_word, "\\<", 2);
memcpy(new_word + 2, word, word_length);
strcpy(new_word + 2 + word_length, "\\>");
token_t * mt = (token_t*)malloc(sizeof(token_t));
- mt->hl = g;
- mt->t = KEYWORD;
+
+ mt->hl = g;
+ mt->t = KEYWORD;
mt->syntax = new_word;
+
append_token(mt);
+
return mt;
}
-int new_keyword_tokens(const char * const * words,
- hl_group_t * const g) {
+int new_keyword_tokens(const char * const * words,
+ hl_group_t * const g) {
int i = 0;
+
while (*words) {
- if(new_keyword_token(*words, g)){
+ if(new_keyword_token(*words, g)) {
++i;
}
++words;
token_t * new_token(const char * const word,
const token_type_t t,
hl_group_t * const g) {
- switch(t){
+ switch (t) {
case KEYSYMBOL: {
return new_symbol_token(word, g);
- };
+ }
case KEYWORD: {
return new_keyword_token(word, g);
- };
+ }
case MATCH: {
} break;
case REGION: {
} break;
}
- // XXX: implement the rest
+
return NULL;
}
-
-
// --------------------
// ### Highlighting ###
// --------------------
-int token_fits(const token_t * const token,
- const char * const to,
- const int string_offset,
- int * match_offset) {
-
+int token_fits(const token_t * const token,
+ const char * const to,
+ const int string_offset,
+ int * match_offset) {
const char * const pattern = token->syntax;
- if (pattern == NULL) {
+ if (! pattern) {
return true;
}
}
void render_string(const char * const string,
- const char * const mode) {
+ const char * const mode) {
for (const char * s = string; *s != '\00';) {
int f;
int token_index = 0;
int offset;
+
for (; token_index < token_table_top; token_index++) {
f = token_fits(token_table[token_index], string, s - string, &offset);
- if(f){ break; }
+ if (f) {
+ break;
+ }
}
//
display_t * display;
display);
//
if (f) {
- for(int i = 0; i < offset; i++){
+ for (int i = 0; i < offset; i++) {
display->callback(s + i,
- 0,
- token_table[token_index]->hl->attributes);
+ 0,
+ token_table[token_index]->hl->attributes);
}
display->callback(s + offset,
f,
}
}
-
-
// -------------------------
// ### Library Mangement ###
// -------------------------
+
int hl_init(void) {
return 0;
}
int hl_deinit(void) {
- for(int i = 0; i < token_table_top; i++){
+ for (int i = 0; i < token_table_top; i++) {
free_token(token_table[i]);
}
+
return 0;
}