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@ -16,6 +16,7 @@ |
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void buffer(char c); |
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void buffer(char c); |
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void cmd(const char *cmdstr, ...); |
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void cmd(const char *cmdstr, ...); |
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int getch(); |
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void getpty(void); |
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void getpty(void); |
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void movea(int x, int y); |
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void movea(int x, int y); |
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void mover(int x, int y); |
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void mover(int x, int y); |
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@ -24,6 +25,7 @@ void scroll(int l); |
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void shell(void); |
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void shell(void); |
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void sigchld(int n); |
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void sigchld(int n); |
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char unbuffer(void); |
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char unbuffer(void); |
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void ungetch(int c); |
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typedef struct { |
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typedef struct { |
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unsigned char data[BUFSIZ]; |
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unsigned char data[BUFSIZ]; |
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@ -31,14 +33,19 @@ typedef struct { |
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int n; |
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int n; |
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} RingBuffer; |
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} RingBuffer; |
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typedef struct { |
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unsigned char data[BUFSIZ]; |
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int i, n; |
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} ReadBuffer; |
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int cols = 80, lines = 25; |
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int cols = 80, lines = 25; |
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int cx = 0, cy = 0; |
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int cx = 0, cy = 0; |
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int c; |
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int c; |
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FILE *fptm = NULL; |
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int ptm, pts; |
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int ptm, pts; |
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_Bool bold, digit, qmark; |
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_Bool bold, digit, qmark; |
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pid_t pid; |
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pid_t pid; |
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RingBuffer buf; |
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RingBuffer buf; |
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ReadBuffer rbuf; |
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void |
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void |
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buffer(char c) { |
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buffer(char c) { |
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@ -61,6 +68,17 @@ cmd(const char *cmdstr, ...) { |
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va_end(ap); |
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va_end(ap); |
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} |
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} |
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int |
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getch() { |
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if(rbuf.i++ >= rbuf.n) { |
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rbuf.n = read(ptm, rbuf.data, LENGTH(rbuf.data)); |
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if(rbuf.n == -1) |
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eprintn("error, cannot read from slave pty"); |
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rbuf.i = 0; |
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} |
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return rbuf.data[rbuf.i]; |
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} |
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void |
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void |
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movea(int x, int y) { |
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movea(int x, int y) { |
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x = MAX(x, cols); |
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x = MAX(x, cols); |
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@ -81,10 +99,10 @@ parseesc(void) { |
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int arg[16]; |
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int arg[16]; |
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memset(arg, 0, LENGTH(arg)); |
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memset(arg, 0, LENGTH(arg)); |
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c = getc(fptm); |
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c = getch(); |
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switch(c) { |
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switch(c) { |
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case '[': |
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case '[': |
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c = getc(fptm); |
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c = getch(); |
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for(j = 0; j < LENGTH(arg);) { |
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for(j = 0; j < LENGTH(arg);) { |
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if(isdigit(c)) { |
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if(isdigit(c)) { |
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digit = 1; |
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digit = 1; |
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@ -106,7 +124,7 @@ parseesc(void) { |
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} |
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} |
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break; |
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break; |
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} |
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} |
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c = getc(fptm); |
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c = getch(); |
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} |
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} |
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switch(c) { |
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switch(c) { |
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case '@': |
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case '@': |
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@ -180,7 +198,7 @@ parseesc(void) { |
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break; |
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break; |
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default: |
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default: |
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putchar('\033'); |
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putchar('\033'); |
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ungetc(c, fptm); |
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ungetch(c); |
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} |
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} |
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} |
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} |
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@ -236,6 +254,13 @@ unbuffer(void) { |
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return c; |
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return c; |
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} |
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} |
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void |
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ungetch(int c) { |
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if(rbuf.i + 1 >= rbuf.n) |
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eprint("error, read buffer full\n"); |
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rbuf.data[rbuf.i++] = c; |
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} |
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int |
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int |
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main(int argc, char *argv[]) { |
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main(int argc, char *argv[]) { |
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if(argc == 2 && !strcmp("-v", argv[1])) |
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if(argc == 2 && !strcmp("-v", argv[1])) |
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@ -244,11 +269,8 @@ main(int argc, char *argv[]) { |
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eprint("usage: st [-v]\n"); |
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eprint("usage: st [-v]\n"); |
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getpty(); |
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getpty(); |
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shell(); |
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shell(); |
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fptm = fdopen(ptm, "r+"); |
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if(!fptm) |
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eprintn("cannot open slave pty"); |
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for(;;) { |
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for(;;) { |
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c = getc(fptm); |
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c = getch(); |
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switch(c) { |
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switch(c) { |
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case '\033': |
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case '\033': |
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parseesc(); |
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parseesc(); |
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