38 lines
1 KiB
C
38 lines
1 KiB
C
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#include "runtime/string_input.h"
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#include <string.h>
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typedef struct {
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const char *string;
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size_t position;
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size_t length;
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} TSStringInput;
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const char *ts_string_input_read(void *d, size_t *bytes_read) {
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TSStringInput *data = (TSStringInput *)d;
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if (data->position >= data->length) {
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*bytes_read = 0;
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return "";
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}
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size_t previous_position = data->position;
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data->position = data->length;
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*bytes_read = data->position - previous_position;
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return data->string + previous_position;
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}
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int ts_string_input_seek(void *d, size_t position) {
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TSStringInput *data = (TSStringInput *)d;
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data->position = position;
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return (position < data->length);
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}
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TSInput ts_string_input_make(const char *string) {
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TSStringInput *data = malloc(sizeof(TSStringInput));
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data->string = string;
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data->position = 0;
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data->length = strlen(string);
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return (TSInput) { .data = (void *)data,
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.read_fn = ts_string_input_read,
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.seek_fn = ts_string_input_seek,
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.release_fn = free };
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}
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