diff options
Diffstat (limited to 'buffer.c')
| -rw-r--r-- | buffer.c | 65 |
1 files changed, 63 insertions, 2 deletions
@@ -77,6 +77,14 @@ struct TextBuffer { /// If set to true, buffer will be scrolled to the cursor position next frame. /// This is to fix the problem that \ref x1, \ref y1, \ref x2, \ref y2 are not updated until the buffer is rendered. bool center_cursor_next_frame; + /// whether to indent with spaces + /// + /// this is either set according to the user's settings or according to the autodetected indentation + bool indent_with_spaces; + /// tab size + /// + /// this is either set according to the user's settings or according to the autodetected indentation + uint8_t tab_width; /// x coordinate of left side of buffer float x1; /// y coordinate of top side of buffer @@ -359,6 +367,10 @@ static char *buffer_strdup(TextBuffer *buffer, const char *src) { static void buffer_set_up(Ted *ted, TextBuffer *buffer) { buffer->store_undo_events = true; buffer->ted = ted; + // will be overwritten by buffer_new_file, buffer_load_file for file buffers + const Settings *settings = buffer_settings(buffer); + buffer->indent_with_spaces = settings->indent_with_spaces; + buffer->tab_width = settings->tab_width; } static void line_buffer_set_up(Ted *ted, TextBuffer *buffer) { @@ -544,11 +556,11 @@ void buffer_recompute_settings(TextBuffer *buffer) { } u8 buffer_tab_width(TextBuffer *buffer) { - return buffer_settings(buffer)->tab_width; + return buffer->tab_width; } bool buffer_indent_with_spaces(TextBuffer *buffer) { - return buffer_settings(buffer)->indent_with_spaces; + return buffer->indent_with_spaces; } u32 buffer_line_count(TextBuffer *buffer) { @@ -2965,6 +2977,50 @@ void buffer_paste(TextBuffer *buffer) { } } +static void buffer_detect_indentation(TextBuffer *buffer) { + const Settings *settings = buffer_settings(buffer); + if (settings->autodetect_indentation && buffer->nlines > 1) { + bool use_tabs = false; + uint32_t spcs2 = 0, spcs4 = 0, spcs8 = 0; + for (uint32_t i = 0; i < buffer->nlines; i++) { + const Line *line = &buffer->lines[i]; + if (line->len == 0) continue; + if (line->str[0] == '\t') { + use_tabs = true; + break; + } + uint32_t nspc = 0; + for (nspc = 0; nspc < line->len; nspc++) { + if (line->str[nspc] != ' ') { + break; + } + } + spcs2 += nspc == 2; + spcs4 += nspc == 4; + spcs8 += nspc == 8; + } + if (use_tabs) { + buffer->indent_with_spaces = false; + buffer->tab_width = settings->tab_width; + } else if (spcs2 * 50 > spcs4) { + buffer->indent_with_spaces = true; + buffer->tab_width = 2; + } else if (spcs4 * 50 > spcs8) { + buffer->indent_with_spaces = true; + buffer->tab_width = 4; + } else if (spcs8) { + buffer->indent_with_spaces = true; + buffer->tab_width = 8; + } else { + buffer->indent_with_spaces = settings->indent_with_spaces; + buffer->tab_width = settings->tab_width; + } + } else { + buffer->indent_with_spaces = settings->indent_with_spaces; + buffer->tab_width = settings->tab_width; + } +} + // if an error occurs, buffer is left untouched (except for the error field) and the function returns false. Status buffer_load_file(TextBuffer *buffer, const char *path) { if (!unicode_is_valid_utf8(path)) { @@ -3097,6 +3153,7 @@ Status buffer_load_file(TextBuffer *buffer, const char *path) { buffer_error(buffer, "Couldn't open file %s: %s.", path, strerror(errno)); success = false; } + buffer_detect_indentation(buffer); return success; } @@ -3137,6 +3194,9 @@ void buffer_new_file(TextBuffer *buffer, const char *path) { buffer->lines_capacity = 4; buffer->lines = buffer_calloc(buffer, buffer->lines_capacity, sizeof *buffer->lines); buffer->nlines = 1; + const Settings *settings = buffer_settings(buffer); + buffer->indent_with_spaces = settings->indent_with_spaces; + buffer->tab_width = settings->tab_width; } static bool buffer_write_to_file(TextBuffer *buffer, const char *path) { @@ -3295,6 +3355,7 @@ bool buffer_save_as(TextBuffer *buffer, const char *new_path) { buffer->last_lsp_check = -INFINITY; // we'll send a didOpen the next time buffer_lsp is called. free(prev_path); + buffer_detect_indentation(buffer); return true; } else { free(buffer->path); |