/* See LICENSE for licence details. */
-#include "st.h"
+/* See LICENSE for licence details. */
+#define _XOPEN_SOURCE
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <locale.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+#include <X11/Xutil.h>
+
+#define TNAME "st"
+
+/* Arbitrary sizes */
+#define ESCSIZ 256
+#define ESCARG 16
+
+#define SERRNO strerror(errno)
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) < (b) ? (b) : (a))
+#define LEN(a) (sizeof(a) / sizeof(a[0]))
+#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
+#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
+#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
+
+/* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
+enum { ATnone=0 , ATreverse=1 , ATunderline=2, ATbold=4 };
+enum { CSup, CSdown, CSright, CSleft, CShide, CSdraw, CSwrap, CSsave, CSload };
+enum { CRset=1 , CRupdate=2 };
+enum { TMwrap=1 , TMinsert=2, TMaltcharset };
+enum { SCupdate, SCredraw };
+
+typedef int Color;
+
+typedef struct {
+ KeySym k;
+ char s[ESCSIZ];
+} Key;
+
+typedef struct {
+ char c; /* character code */
+ char mode; /* attribute flags */
+ Color fg; /* foreground */
+ Color bg; /* background */
+ char state; /* state flag */
+} Glyph;
+
+typedef Glyph* Line;
+
+typedef struct {
+ Glyph attr; /* current char attributes */
+ char hidden;
+ int x;
+ int y;
+} TCursor;
+
+/* Escape sequence structs */
+/* ESC <pre> [[ [<priv>] <arg> [;]] <mode>] */
+typedef struct {
+ char buf[ESCSIZ+1]; /* raw string */
+ int len; /* raw string length */
+ char pre;
+ char priv;
+ int arg[ESCARG+1];
+ int narg; /* nb of args */
+ char mode;
+} Escseq;
+
+/* Internal representation of the screen */
+typedef struct {
+ int row; /* nb row */
+ int col; /* nb col */
+ Line* line; /* screen */
+ TCursor c; /* cursor */
+ int top; /* top scroll limit */
+ int bot; /* bottom scroll limit */
+ int mode; /* terminal mode */
+} Term;
+
+/* Purely graphic info */
+typedef struct {
+ Display* dis;
+ Window win;
+ int scr;
+ int w; /* window width */
+ int h; /* window height */
+ int ch; /* char height */
+ int cw; /* char width */
+} XWindow;
+
+#include "config.h"
+
+/* Drawing Context */
+typedef struct {
+ unsigned long col[LEN(colorname)];
+ XFontStruct* font;
+ GC gc;
+} DC;
+
+void die(const char *errstr, ...);
+void draw(int);
+void execsh(void);
+void sigchld(int);
+char* kmap(KeySym);
+void kpress(XKeyEvent *);
+void resize(XEvent *);
+void run(void);
+
+int escaddc(char);
+int escfinal(char);
+void escdump(void);
+void eschandle(void);
+void escparse(void);
+void escreset(void);
+
+void tclearregion(int, int, int, int);
+void tcpos(int);
+void tcursor(int);
+void tdeletechar(int);
+void tdeleteline(int);
+void tdump(void);
+void tinsertblank(int);
+void tinsertblankline(int);
+void tmoveto(int, int);
+void tnew(int, int);
+void tnewline(void);
+void tputc(char);
+void tputs(char*, int);
+void tresize(int, int);
+void tscroll(void);
+void tsetattr(int*, int);
+void tsetchar(char);
+void tsetscroll(int, int);
+
+void ttynew(void);
+void ttyread(void);
+void ttyresize(int, int);
+void ttywrite(char *, size_t);
+
+unsigned long xgetcol(const char *);
+void xclear(int, int, int, int);
+void xcursor(int);
+void xdrawc(int, int, Glyph);
+void xinit(void);
+void xscroll(void);
+
/* Globals */
DC dc;
xw.dis = XOpenDisplay(NULL);
xw.scr = XDefaultScreen(xw.dis);
if(!xw.dis)
- die("can not open display");
+ die("Can't open display\n");
/* font */
if(!(dc.font = XLoadQueryFont(xw.dis, FONT)))
- die("can not find font " FONT);
+ die("Can't load font %s\n", FONT);
xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
xw.ch = dc.font->ascent + dc.font->descent + LINESPACE;
xcursor(CSdraw);
}
+char*
+kmap(KeySym k) {
+ int i;
+ for(i = 0; i < LEN(key); i++)
+ if(key[i].k == k)
+ return (char*)key[i].s;
+ return NULL;
+}
+
void
kpress(XKeyEvent *e) {
KeySym ksym;
int len;
int meta;
int shift;
+ char* skmap;
meta = e->state & Mod1Mask;
shift = e->state & ShiftMask;
len = XLookupString(e, buf, sizeof(buf), &ksym, NULL);
- if(len > 0) {
+ if(skmap = kmap(ksym))
+ ttywrite(skmap, strlen(skmap));
+ else if(len > 0) {
buf[sizeof(buf)-1] = '\0';
if(meta && len == 1)
ttywrite("\033", 1);
ttywrite(buf, len);
- return;
- }
- switch(ksym) {
- default:
- fprintf(stderr, "errkey: %d\n", (int)ksym);
- break;
- case XK_Up:
- case XK_Down:
- case XK_Left:
- case XK_Right:
- sprintf(buf, "\033[%c", "DACB"[ksym - XK_Left]);
- ttywrite(buf, 3);
- break;
- case XK_Delete: ttywrite(KEYDELETE, sizeof(KEYDELETE)-1); break;
- case XK_Home: ttywrite(KEYHOME, sizeof(KEYHOME)-1); break;
- case XK_End: ttywrite(KEYEND, sizeof(KEYEND) -1); break;
- case XK_Prior: ttywrite(KEYPREV, sizeof(KEYPREV)-1); break;
- case XK_Next: ttywrite(KEYNEXT, sizeof(KEYNEXT)-1); break;
- case XK_Insert:
- /* XXX: paste X clipboard */
- if(shift)
- ;
- break;
- }
+ } else
+ switch(ksym) {
+ case XK_Insert:
+ if(shift)
+ /* XXX: paste X clipboard */;
+ break;
+ default:
+ fprintf(stderr, "errkey: %d\n", (int)ksym);
+ break;
+ }
}
void
}
}
-
void
run(void) {
int ret;
