diff options
Diffstat (limited to 'buffer.c')
| -rw-r--r-- | buffer.c | 25 |
1 files changed, 20 insertions, 5 deletions
@@ -448,6 +448,7 @@ static void buffer_line_free(Line *line) { free(line->str); } +// Free a buffer. Once a buffer is freed, it can be used again for other purposes. // Does not free the pointer `buffer` (buffer might not have even been allocated with malloc) void buffer_free(TextBuffer *buffer) { Line *lines = buffer->lines; @@ -465,16 +466,23 @@ void buffer_free(TextBuffer *buffer) { arr_free(buffer->undo_history); arr_free(buffer->redo_history); + Settings *settings = buffer->settings; + Font *font = buffer->font; + // zero buffer, except for error char error[sizeof buffer->error]; memcpy(error, buffer->error, sizeof error); memset(buffer, 0, sizeof *buffer); memcpy(buffer->error, error, sizeof error); + + buffer_create(buffer, font, settings); } // filename must be around for at least as long as the buffer is. -Status buffer_load_file(TextBuffer *buffer, char const *filename) { +void buffer_load_file(TextBuffer *buffer, char const *filename) { + buffer_free(buffer); + buffer->filename = filename; FILE *fp = fopen(filename, "rb"); if (fp) { @@ -483,7 +491,7 @@ Status buffer_load_file(TextBuffer *buffer, char const *filename) { fseek(fp, 0, SEEK_SET); if (file_size > 10L<<20) { buffer_seterr(buffer, "File too big (size: %zu).", file_size); - return false; + return; } u8 *file_contents = buffer_calloc(buffer, 1, file_size); @@ -544,13 +552,20 @@ Status buffer_load_file(TextBuffer *buffer, char const *filename) { if (!success) { buffer_free(buffer); } - return success; } else { buffer_seterr(buffer, "File %s does not exist.", filename); - return false; } } +void buffer_new_file(TextBuffer *buffer, char const *filename) { + buffer_free(buffer); + + buffer->filename = filename; + buffer->lines_capacity = 4; + buffer->lines = buffer_calloc(buffer, buffer->lines_capacity, sizeof *buffer->lines); + buffer->nlines = 1; +} + bool buffer_save(TextBuffer *buffer) { FILE *out = fopen(buffer->filename, "wb"); if (out) { @@ -1743,7 +1758,7 @@ void buffer_render(TextBuffer *buffer, float x1, float y1, float x2, float y2) { char32_t c = *p; switch (c) { - case U'\n': assert(0); + case U'\n': assert(0); break; case U'\r': break; // for CRLF line endings case U'\t': { uint tab_width = buffer->settings->tab_width; |