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Tidy up new UTF-8 code and make it more generic.
This commit is contained in:
nicm
parent
dc893405e1
commit
49ec074271
6
grid.c
6
grid.c
@ -114,7 +114,7 @@ grid_extended_cell(struct grid_line *gl, struct grid_cell_entry *gce,
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gl->flags |= GRID_LINE_EXTENDED;
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gee = &gl->extddata[gce->offset];
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gee->data = utf8_map_big(&gc->data);
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utf8_from_data(&gc->data, &gee->data);
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gee->attr = gc->attr;
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gee->flags = flags;
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gee->fg = gc->fg;
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@ -496,7 +496,7 @@ grid_get_cell1(struct grid_line *gl, u_int px, struct grid_cell *gc)
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gc->fg = gee->fg;
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gc->bg = gee->bg;
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gc->us = gee->us;
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utf8_get_big(gee->data, &gc->data);
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utf8_to_data(gee->data, &gc->data);
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}
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return;
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}
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@ -570,7 +570,7 @@ grid_set_cells(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc,
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gce = &gl->celldata[px + i];
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if (grid_need_extended_cell(gce, gc)) {
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gee = grid_extended_cell(gl, gce, gc);
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gee->data = utf8_set_big(s[i], 1);
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gee->data = utf8_build_one(s[i], 1);
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} else
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grid_store_cell(gce, gc, s[i]);
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}
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15
tmux.h
15
tmux.h
@ -596,10 +596,13 @@ struct msg_write_close {
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#define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
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#define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
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/* A single UTF-8 character. */
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typedef u_int utf8_char;
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/*
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* A single UTF-8 character. UTF8_SIZE must be big enough to hold combining
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* An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
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* characters as well. It can't be more than 32 bytes without changes to how
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* big characters are stored.
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* characters are stored.
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*/
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#define UTF8_SIZE 21
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struct utf8_data {
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@ -673,7 +676,7 @@ struct grid_cell {
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/* Grid extended cell entry. */
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struct grid_extd_entry {
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u_int data;
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utf8_char data;
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u_short attr;
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u_char flags;
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int fg;
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@ -2889,9 +2892,9 @@ u_int session_group_attached_count(struct session_group *);
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void session_renumber_windows(struct session *);
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/* utf8.c */
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u_int utf8_set_big(char, u_int);
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u_int utf8_map_big(const struct utf8_data *);
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void utf8_get_big(u_int, struct utf8_data *);
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utf8_char utf8_build_one(char, u_int);
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enum utf8_state utf8_from_data(const struct utf8_data *, utf8_char *);
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void utf8_to_data(utf8_char, struct utf8_data *);
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void utf8_set(struct utf8_data *, u_char);
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void utf8_copy(struct utf8_data *, const struct utf8_data *);
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enum utf8_state utf8_open(struct utf8_data *, u_char);
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295
utf8.c
295
utf8.c
@ -27,153 +27,157 @@
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#include "tmux.h"
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static int utf8_width(wchar_t);
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struct utf8_big_item {
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u_int index;
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RB_ENTRY(utf8_big_item) entry;
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struct utf8_item {
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u_int offset;
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RB_ENTRY(utf8_item) entry;
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char data[UTF8_SIZE];
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u_char size;
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};
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RB_HEAD(utf8_big_tree, utf8_big_item);
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RB_HEAD(utf8_tree, utf8_item);
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static int
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utf8_big_cmp(struct utf8_big_item *bi1, struct utf8_big_item *bi2)
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utf8_cmp(struct utf8_item *ui1, struct utf8_item *ui2)
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{
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if (bi1->size < bi2->size)
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if (ui1->size < ui2->size)
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return (-1);
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if (bi1->size > bi2->size)
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if (ui1->size > ui2->size)
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return (1);
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return (memcmp(bi1->data, bi2->data, bi1->size));
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return (memcmp(ui1->data, ui2->data, ui1->size));
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}
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RB_GENERATE_STATIC(utf8_big_tree, utf8_big_item, entry, utf8_big_cmp);
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static struct utf8_big_tree utf8_big_tree = RB_INITIALIZER(utf8_big_tree);
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RB_GENERATE_STATIC(utf8_tree, utf8_item, entry, utf8_cmp);
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static struct utf8_tree utf8_tree = RB_INITIALIZER(utf8_tree);
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static struct utf8_big_item *utf8_big_list;
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static u_int utf8_big_list_size;
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static u_int utf8_big_list_used;
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static struct utf8_item *utf8_list;
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static u_int utf8_list_size;
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static u_int utf8_list_used;
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union utf8_big_map {
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u_int value;
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union utf8_map {
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utf8_char uc;
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struct {
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u_char flags;
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#define UTF8_BIG_SIZE 0x1f
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#define UTF8_BIG_WIDTH2 0x20
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#define UTF8_FLAG_SIZE 0x1f
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#define UTF8_FLAG_WIDTH2 0x20
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u_char data[3];
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};
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} __packed;
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static const union utf8_big_map utf8_big_space1 = {
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static const union utf8_map utf8_space1 = {
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.flags = 1,
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.data = " "
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};
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static const union utf8_big_map utf8_big_space2 = {
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.flags = UTF8_BIG_WIDTH2|2,
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static const union utf8_map utf8_space2 = {
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.flags = UTF8_FLAG_WIDTH2|2,
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.data = " "
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};
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/* Get a big item by index. */
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static struct utf8_big_item *
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utf8_get_big_item(const char *data, size_t size)
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/* Get a UTF-8 item by offset. */
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static struct utf8_item *
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utf8_get_item(const char *data, size_t size)
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{
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struct utf8_big_item bi;
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struct utf8_item ui;
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memcpy(bi.data, data, size);
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bi.size = size;
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memcpy(ui.data, data, size);
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ui.size = size;
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return (RB_FIND(utf8_big_tree, &utf8_big_tree, &bi));
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return (RB_FIND(utf8_tree, &utf8_tree, &ui));
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}
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/* Add a big item. */
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/* Expand UTF-8 list. */
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static int
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utf8_put_big_item(const char *data, size_t size, u_int *index)
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utf8_expand_list(void)
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{
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struct utf8_big_item *bi;
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bi = utf8_get_big_item(data, size);
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if (bi != NULL) {
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*index = bi->index;
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log_debug("%s: have %.*s at %u", __func__, (int)size, data,
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*index);
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return (0);
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}
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if (utf8_big_list_used == utf8_big_list_size) {
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if (utf8_big_list_size == 0xffffff)
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return (-1);
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if (utf8_big_list_size == 0)
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utf8_big_list_size = 256;
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else if (utf8_big_list_size > 0x7fffff)
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utf8_big_list_size = 0xffffff;
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else
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utf8_big_list_size *= 2;
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utf8_big_list = xreallocarray(utf8_big_list, utf8_big_list_size,
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sizeof *utf8_big_list);
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}
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*index = utf8_big_list_used++;
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bi = &utf8_big_list[*index];
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bi->index = *index;
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memcpy(bi->data, data, size);
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bi->size = size;
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RB_INSERT(utf8_big_tree, &utf8_big_tree, bi);
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log_debug("%s: added %.*s at %u", __func__, (int)size, data, *index);
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if (utf8_list_size == 0xffffff)
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return (-1);
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if (utf8_list_size == 0)
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utf8_list_size = 256;
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else if (utf8_list_size > 0x7fffff)
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utf8_list_size = 0xffffff;
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else
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utf8_list_size *= 2;
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utf8_list = xreallocarray(utf8_list, utf8_list_size, sizeof *utf8_list);
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return (0);
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}
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/* Get UTF-8 as index into buffer. */
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u_int
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utf8_map_big(const struct utf8_data *ud)
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/* Add a UTF-8 item. */
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static int
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utf8_put_item(const char *data, size_t size, u_int *offset)
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{
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union utf8_big_map m = { .value = 0 };
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u_int o;
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const char *data = ud->data;
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size_t size = ud->size;
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struct utf8_item *ui;
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if (ud->width != 1 && ud->width != 2)
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return (utf8_big_space1.value);
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if (size > UTF8_BIG_SIZE)
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goto fail;
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if (size == 1)
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return (utf8_set_big(data[0], 1));
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m.flags = size;
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if (ud->width == 2)
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m.flags |= UTF8_BIG_WIDTH2;
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if (size <= 3) {
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memcpy(&m.data, data, size);
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return (m.value);
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ui = utf8_get_item(data, size);
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if (ui != NULL) {
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*offset = ui->offset;
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log_debug("%s: have %.*s at %u", __func__, (int)size, data,
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*offset);
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return (0);
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}
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if (utf8_put_big_item(data, size, &o) != 0)
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if (utf8_list_used == utf8_list_size && utf8_expand_list() != 0)
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return (-1);
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*offset = utf8_list_used++;
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ui = &utf8_list[*offset];
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ui->offset = *offset;
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memcpy(ui->data, data, size);
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ui->size = size;
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RB_INSERT(utf8_tree, &utf8_tree, ui);
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log_debug("%s: added %.*s at %u", __func__, (int)size, data, *offset);
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return (0);
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}
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/* Get UTF-8 character from data. */
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enum utf8_state
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utf8_from_data(const struct utf8_data *ud, utf8_char *uc)
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{
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union utf8_map m = { .uc = 0 };
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u_int offset;
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if (ud->width != 1 && ud->width != 2)
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return (utf8_space1.uc);
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if (ud->size > UTF8_FLAG_SIZE)
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goto fail;
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m.data[0] = (o & 0xff);
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m.data[1] = (o >> 8) & 0xff;
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m.data[2] = (o >> 16);
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return (m.value);
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if (ud->size == 1)
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return (utf8_build_one(ud->data[0], 1));
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m.flags = ud->size;
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if (ud->width == 2)
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m.flags |= UTF8_FLAG_WIDTH2;
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if (ud->size <= 3)
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memcpy(m.data, ud->data, ud->size);
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else {
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if (utf8_put_item(ud->data, ud->size, &offset) != 0)
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goto fail;
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m.data[0] = (offset & 0xff);
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m.data[1] = (offset >> 8) & 0xff;
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m.data[2] = (offset >> 16);
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}
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*uc = m.uc;
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return (UTF8_DONE);
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fail:
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if (ud->width == 1)
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return (utf8_big_space1.value);
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return (utf8_big_space2.value);
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*uc = utf8_space1.uc;
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else
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*uc = utf8_space2.uc;
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return (UTF8_ERROR);
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}
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/* Get UTF-8 from index into buffer. */
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/* Get UTF-8 data from character. */
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void
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utf8_get_big(u_int v, struct utf8_data *ud)
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utf8_to_data(utf8_char uc, struct utf8_data *ud)
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{
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union utf8_big_map m = { .value = v };
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struct utf8_big_item *bi;
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u_int o;
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union utf8_map m = { .uc = uc };
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struct utf8_item *ui;
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u_int offset;
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memset(ud, 0, sizeof *ud);
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ud->size = ud->have = (m.flags & UTF8_BIG_SIZE);
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if (m.flags & UTF8_BIG_WIDTH2)
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ud->size = ud->have = (m.flags & UTF8_FLAG_SIZE);
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if (m.flags & UTF8_FLAG_WIDTH2)
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ud->width = 2;
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else
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ud->width = 1;
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@ -183,24 +187,24 @@ utf8_get_big(u_int v, struct utf8_data *ud)
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return;
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}
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o = ((u_int)m.data[2] << 16)|((u_int)m.data[1] << 8)|m.data[0];
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if (o >= utf8_big_list_used)
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offset = ((u_int)m.data[2] << 16)|((u_int)m.data[1] << 8)|m.data[0];
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if (offset >= utf8_list_used)
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memset(ud->data, ' ', ud->size);
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else {
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bi = &utf8_big_list[o];
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memcpy(ud->data, bi->data, ud->size);
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ui = &utf8_list[offset];
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memcpy(ud->data, ui->data, ud->size);
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}
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}
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/* Get big value for UTF-8 single character. */
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/* Get UTF-8 character from a single ASCII character. */
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u_int
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utf8_set_big(char c, u_int width)
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utf8_build_one(char c, u_int width)
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{
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union utf8_big_map m = { .flags = 1, .data[0] = c };
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union utf8_map m = { .flags = 1, .data[0] = c };
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if (width == 2)
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m.flags |= UTF8_BIG_WIDTH2;
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return (m.value);
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m.flags |= UTF8_FLAG_WIDTH2;
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return (m.uc);
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}
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/* Set a single character. */
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@ -225,6 +229,20 @@ utf8_copy(struct utf8_data *to, const struct utf8_data *from)
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to->data[i] = '\0';
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}
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/* Get width of Unicode character. */
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static int
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utf8_width(wchar_t wc)
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{
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int width;
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width = wcwidth(wc);
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if (width < 0 || width > 0xff) {
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log_debug("Unicode %04lx, wcwidth() %d", (long)wc, width);
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return (-1);
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}
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return (width);
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}
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/*
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* Open UTF-8 sequence.
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*
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@ -279,20 +297,6 @@ utf8_append(struct utf8_data *ud, u_char ch)
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return (UTF8_DONE);
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}
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/* Get width of Unicode character. */
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static int
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utf8_width(wchar_t wc)
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{
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int width;
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width = wcwidth(wc);
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if (width < 0 || width > 0xff) {
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log_debug("Unicode %04lx, wcwidth() %d", (long)wc, width);
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return (-1);
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}
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return (width);
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}
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/* Combine UTF-8 into Unicode. */
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enum utf8_state
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utf8_combine(const struct utf8_data *ud, wchar_t *wc)
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@ -337,13 +341,10 @@ int
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utf8_strvis(char *dst, const char *src, size_t len, int flag)
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{
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struct utf8_data ud;
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const char *start, *end;
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const char *start = dst, *end = src + len;
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enum utf8_state more;
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size_t i;
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start = dst;
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end = src + len;
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while (src < end) {
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if ((more = utf8_open(&ud, *src)) == UTF8_MORE) {
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while (++src < end && more == UTF8_MORE)
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@ -369,7 +370,6 @@ utf8_strvis(char *dst, const char *src, size_t len, int flag)
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dst = vis(dst, src[0], flag, '\0');
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src++;
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}
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*dst = '\0';
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return (dst - start);
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}
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@ -392,9 +392,9 @@ utf8_stravis(char **dst, const char *src, int flag)
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int
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utf8_isvalid(const char *s)
|
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{
|
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struct utf8_data ud;
|
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const char *end;
|
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enum utf8_state more;
|
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struct utf8_data ud;
|
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const char *end;
|
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enum utf8_state more;
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end = s + strlen(s);
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while (s < end) {
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@ -420,15 +420,12 @@ utf8_isvalid(const char *s)
|
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char *
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utf8_sanitize(const char *src)
|
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{
|
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char *dst;
|
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size_t n;
|
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enum utf8_state more;
|
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struct utf8_data ud;
|
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u_int i;
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char *dst = NULL;
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size_t n = 0;
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enum utf8_state more;
|
||||
struct utf8_data ud;
|
||||
u_int i;
|
||||
|
||||
dst = NULL;
|
||||
|
||||
n = 0;
|
||||
while (*src != '\0') {
|
||||
dst = xreallocarray(dst, n + 1, sizeof *dst);
|
||||
if ((more = utf8_open(&ud, *src)) == UTF8_MORE) {
|
||||
@ -449,7 +446,6 @@ utf8_sanitize(const char *src)
|
||||
dst[n++] = '_';
|
||||
src++;
|
||||
}
|
||||
|
||||
dst = xreallocarray(dst, n + 1, sizeof *dst);
|
||||
dst[n] = '\0';
|
||||
return (dst);
|
||||
@ -471,9 +467,8 @@ u_int
|
||||
utf8_strwidth(const struct utf8_data *s, ssize_t n)
|
||||
{
|
||||
ssize_t i;
|
||||
u_int width;
|
||||
u_int width = 0;
|
||||
|
||||
width = 0;
|
||||
for (i = 0; s[i].size != 0; i++) {
|
||||
if (n != -1 && n == i)
|
||||
break;
|
||||
@ -489,13 +484,10 @@ utf8_strwidth(const struct utf8_data *s, ssize_t n)
|
||||
struct utf8_data *
|
||||
utf8_fromcstr(const char *src)
|
||||
{
|
||||
struct utf8_data *dst;
|
||||
size_t n;
|
||||
struct utf8_data *dst = NULL;
|
||||
size_t n = 0;
|
||||
enum utf8_state more;
|
||||
|
||||
dst = NULL;
|
||||
|
||||
n = 0;
|
||||
while (*src != '\0') {
|
||||
dst = xreallocarray(dst, n + 1, sizeof *dst);
|
||||
if ((more = utf8_open(&dst[n], *src)) == UTF8_MORE) {
|
||||
@ -511,7 +503,6 @@ utf8_fromcstr(const char *src)
|
||||
n++;
|
||||
src++;
|
||||
}
|
||||
|
||||
dst = xreallocarray(dst, n + 1, sizeof *dst);
|
||||
dst[n].size = 0;
|
||||
return (dst);
|
||||
@ -521,18 +512,14 @@ utf8_fromcstr(const char *src)
|
||||
char *
|
||||
utf8_tocstr(struct utf8_data *src)
|
||||
{
|
||||
char *dst;
|
||||
size_t n;
|
||||
char *dst = NULL;
|
||||
size_t n = 0;
|
||||
|
||||
dst = NULL;
|
||||
|
||||
n = 0;
|
||||
for(; src->size != 0; src++) {
|
||||
dst = xreallocarray(dst, n + src->size, 1);
|
||||
memcpy(dst + n, src->data, src->size);
|
||||
n += src->size;
|
||||
}
|
||||
|
||||
dst = xreallocarray(dst, n + 1, 1);
|
||||
dst[n] = '\0';
|
||||
return (dst);
|
||||
@ -570,7 +557,7 @@ utf8_padcstr(const char *s, u_int width)
|
||||
{
|
||||
size_t slen;
|
||||
char *out;
|
||||
u_int n, i;
|
||||
u_int n, i;
|
||||
|
||||
n = utf8_cstrwidth(s);
|
||||
if (n >= width)
|
||||
@ -591,7 +578,7 @@ utf8_rpadcstr(const char *s, u_int width)
|
||||
{
|
||||
size_t slen;
|
||||
char *out;
|
||||
u_int n, i;
|
||||
u_int n, i;
|
||||
|
||||
n = utf8_cstrwidth(s);
|
||||
if (n >= width)
|
||||
|
||||
@ -2571,7 +2571,7 @@ window_copy_cellstring(const struct grid_line *gl, u_int px, size_t *size,
|
||||
return (&gce->data.data);
|
||||
}
|
||||
|
||||
utf8_get_big(gl->extddata[gce->offset].data, &ud);
|
||||
utf8_to_data(gl->extddata[gce->offset].data, &ud);
|
||||
*size = ud.size;
|
||||
*allocated = 1;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user