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basic Utf-8 support

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master
Alessandro Mauri 5 years ago
parent de64d25e25
commit 83e3b71cd4
2 changed files with 422 additions and 5 deletions
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  1. 42
      ste.c
  2. 383
      ste.sublime-workspace

42
ste.c
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@ -2,11 +2,13 @@
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <locale.h>
/* defines */
#define CTRL(k) ((k) & 0x1f) // Control mask modifier
#define TABSIZE 4 // Tab size as used in render
#define STAT_SIZE 128
#define _XOPEN_SOURCE_EXTENDED
/* main data structure containing:
* -cursor position
@ -90,6 +92,9 @@ static void handleDel (int select);
/* testing */
static void updateInfo (void);
static int whatsThat (void);
static inline int isUtf (int c);
static inline int isCont (int c);
static inline int isStart (int c);
/* --------------------------------- main ------------------------------------ */
int main (int argc, char *argv[])
@ -166,6 +171,9 @@ int main (int argc, char *argv[])
void termInit (void)
{
/* Init locales */
setlocale(LC_ALL, "");
/* Init the screen and refresh */
initscr();
refresh();
@ -263,7 +271,7 @@ void drawLines (void)
/* Draw the line matcing render memory */
if (&rows.rw[ln] == NULL) termDie("drawlines NULL");
if (rows.rw[ln].r_size > t.cur.off_x) {
addnstr(&rows.rw[ln].render[t.cur.off_x], t.dim.x + 1);
addnstr(&rows.rw[ln].render[t.cur.off_x], t.dim.x + 1); // good for utf-8
}
lnMove(i + 1, 0);
@ -558,6 +566,10 @@ void cursorMove (int a)
t.cur.y--;
t.cur.x = rows.rw[t.cur.y].size;
}
} else if (isCont(rows.rw[t.cur.y].chars[t.cur.x - 1])) {
do {
t.cur.x--;
} while(!isStart(rows.rw[t.cur.y].chars[t.cur.x]));
} else
t.cur.x--;
break;
@ -568,6 +580,10 @@ void cursorMove (int a)
t.cur.y++;
t.cur.x = 0;
}
} else if (isStart(rows.rw[t.cur.y].chars[t.cur.x])) {
do {
t.cur.x++;
} while(isCont(rows.rw[t.cur.y].chars[t.cur.x]));
} else
t.cur.x++;
break;
@ -607,9 +623,16 @@ void curUpdateRender ()
}
// x
static int i;
for (i = 0, t.cur.r_x = 0; i < t.cur.x; i++) {
if (rows.rw[t.cur.y].chars[i] == '\t') t.cur.r_x += (TABSIZE - 1) - (t.cur.r_x % TABSIZE);
static int i, c;
for (c = i = 0, t.cur.r_x = 0; i < t.cur.x; i++) {
c = rows.rw[t.cur.y].chars[i];
/* continue (skip increment) if you encounter a continuation char */
if (isCont(c)) continue;
else if (isStart(c)) t.cur.r_x++;
if (c == '\t') t.cur.r_x += (TABSIZE - 1) - (t.cur.r_x % TABSIZE);
t.cur.r_x++;
}
@ -678,4 +701,15 @@ void updateInfo (void)
t.dim.x -= t.pad + 1;
}
int isUtf (int c) {
return (c >= 0x80 || c < 0 ? 1 : 0);
}
int isCont (int c) {
return ((c &= 0xC0) == 0x80 ? 1 : 0);
}
int isStart (int c) {
return (isUtf(c) && !isCont(c) ? 1 : 0);
}
/*--------------------------------- testing ------------------------------------*/

383
ste.sublime-workspace vendored
Unescape View File

@ -0,0 +1,383 @@
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