st

my build of st - simple terminal
git clone git://git.kocotian.pl/st.git
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commit 6696ef8563a58ee07e4de5b3a74b52b91934f6a9
parent ff040e9894f62fe28bf100488211d0a407740668
Author: Christoph Lohmann <20h@r-36.net>
Date:   Wed, 29 Aug 2012 23:14:20 +0200

Add OSC, DSC, PM, APC and settitle.

Diffstat:
MTODO | 1+
Mst.c | 279++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------------
2 files changed, 191 insertions(+), 89 deletions(-)

diff --git a/TODO b/TODO @@ -20,6 +20,7 @@ bugs * fix shift up/down (shift selection in emacs) * fix selection click * fix selection paste for xatom STRING +* fix umlaut handling in settitle misc ---- diff --git a/st.c b/st.c @@ -43,9 +43,10 @@ #define XEMBED_FOCUS_OUT 5 /* Arbitrary sizes */ -#define ESC_TITLE_SIZ 256 #define ESC_BUF_SIZ 256 #define ESC_ARG_SIZ 16 +#define STR_BUF_SIZ 256 +#define STR_ARG_SIZ 16 #define DRAW_BUF_SIZ 1024 #define UTF_SIZ 4 #define XK_NO_MOD UINT_MAX @@ -110,9 +111,9 @@ enum term_mode { enum escape_state { ESC_START = 1, ESC_CSI = 2, - ESC_OSC = 4, - ESC_TITLE = 8, - ESC_ALTCHARSET = 16 + ESC_STR = 4, /* DSC, OSC, PM, APC */ + ESC_ALTCHARSET = 8, + ESC_STR_END = 16, /* a final string was encountered */ }; enum window_state { @@ -158,6 +159,16 @@ typedef struct { char mode; } CSIEscape; +/* STR Escape sequence structs */ +/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */ +typedef struct { + char type; /* ESC type ... */ + char buf[STR_BUF_SIZ]; /* raw string */ + int len; /* raw string length */ + char *args[STR_ARG_SIZ]; + int narg; /* nb of args */ +} STREscape; + /* Internal representation of the screen */ typedef struct { int row; /* nb row */ @@ -170,8 +181,6 @@ typedef struct { int bot; /* bottom scroll limit */ int mode; /* terminal mode flags */ int esc; /* escape state flags */ - char title[ESC_TITLE_SIZ]; - int titlelen; bool *tabs; } Term; @@ -239,6 +248,10 @@ static void csidump(void); static void csihandle(void); static void csiparse(void); static void csireset(void); +static void strdump(void); +static void strhandle(void); +static void strparse(void); +static void strreset(void); static void tclearregion(int, int, int, int); static void tcursor(int); @@ -323,7 +336,8 @@ static void (*handler[LASTEvent])(XEvent *) = { static DC dc; static XWindow xw; static Term term; -static CSIEscape escseq; +static CSIEscape csiescseq; +static STREscape strescseq; static int cmdfd; static pid_t pid; static Selection sel; @@ -968,22 +982,22 @@ tnewline(int first_col) { void csiparse(void) { /* int noarg = 1; */ - char *p = escseq.buf; + char *p = csiescseq.buf; - escseq.narg = 0; + csiescseq.narg = 0; if(*p == '?') - escseq.priv = 1, p++; + csiescseq.priv = 1, p++; - while(p < escseq.buf+escseq.len) { + while(p < csiescseq.buf+csiescseq.len) { while(isdigit(*p)) { - escseq.arg[escseq.narg] *= 10; - escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */; + csiescseq.arg[csiescseq.narg] *= 10; + csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */; } - if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ) - escseq.narg++, p++; + if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ) + csiescseq.narg++, p++; else { - escseq.mode = *p; - escseq.narg++; + csiescseq.mode = *p; + csiescseq.narg++; return; } } @@ -1166,7 +1180,7 @@ tsetscroll(int t, int b) { void csihandle(void) { - switch(escseq.mode) { + switch(csiescseq.mode) { default: unknown: fprintf(stderr, "erresc: unknown csi "); @@ -1174,37 +1188,37 @@ csihandle(void) { /* die(""); */ break; case '@': /* ICH -- Insert <n> blank char */ - DEFAULT(escseq.arg[0], 1); - tinsertblank(escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tinsertblank(csiescseq.arg[0]); break; case 'A': /* CUU -- Cursor <n> Up */ case 'e': - DEFAULT(escseq.arg[0], 1); - tmoveto(term.c.x, term.c.y-escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x, term.c.y-csiescseq.arg[0]); break; case 'B': /* CUD -- Cursor <n> Down */ - DEFAULT(escseq.arg[0], 1); - tmoveto(term.c.x, term.c.y+escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x, term.c.y+csiescseq.arg[0]); break; case 'C': /* CUF -- Cursor <n> Forward */ case 'a': - DEFAULT(escseq.arg[0], 1); - tmoveto(term.c.x+escseq.arg[0], term.c.y); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x+csiescseq.arg[0], term.c.y); break; case 'D': /* CUB -- Cursor <n> Backward */ - DEFAULT(escseq.arg[0], 1); - tmoveto(term.c.x-escseq.arg[0], term.c.y); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x-csiescseq.arg[0], term.c.y); break; case 'E': /* CNL -- Cursor <n> Down and first col */ - DEFAULT(escseq.arg[0], 1); - tmoveto(0, term.c.y+escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(0, term.c.y+csiescseq.arg[0]); break; case 'F': /* CPL -- Cursor <n> Up and first col */ - DEFAULT(escseq.arg[0], 1); - tmoveto(0, term.c.y-escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(0, term.c.y-csiescseq.arg[0]); break; case 'g': /* TBC -- Tabulation clear */ - switch (escseq.arg[0]) { + switch (csiescseq.arg[0]) { case 0: /* clear current tab stop */ term.tabs[term.c.x] = 0; break; @@ -1217,23 +1231,23 @@ csihandle(void) { break; case 'G': /* CHA -- Move to <col> */ case '`': /* XXX: HPA -- same? */ - DEFAULT(escseq.arg[0], 1); - tmoveto(escseq.arg[0]-1, term.c.y); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(csiescseq.arg[0]-1, term.c.y); break; case 'H': /* CUP -- Move to <row> <col> */ case 'f': /* XXX: HVP -- same? */ - DEFAULT(escseq.arg[0], 1); - DEFAULT(escseq.arg[1], 1); - tmoveto(escseq.arg[1]-1, escseq.arg[0]-1); + DEFAULT(csiescseq.arg[0], 1); + DEFAULT(csiescseq.arg[1], 1); + tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1); break; case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */ - DEFAULT(escseq.arg[0], 1); - while (escseq.arg[0]--) + DEFAULT(csiescseq.arg[0], 1); + while (csiescseq.arg[0]--) tputtab(); break; case 'J': /* ED -- Clear screen */ sel.bx = -1; - switch(escseq.arg[0]) { + switch(csiescseq.arg[0]) { case 0: /* below */ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); if(term.c.y < term.row-1) @@ -1252,7 +1266,7 @@ csihandle(void) { } break; case 'K': /* EL -- Clear line */ - switch(escseq.arg[0]) { + switch(csiescseq.arg[0]) { case 0: /* right */ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); break; @@ -1265,20 +1279,20 @@ csihandle(void) { } break; case 'S': /* SU -- Scroll <n> line up */ - DEFAULT(escseq.arg[0], 1); - tscrollup(term.top, escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tscrollup(term.top, csiescseq.arg[0]); break; case 'T': /* SD -- Scroll <n> line down */ - DEFAULT(escseq.arg[0], 1); - tscrolldown(term.top, escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tscrolldown(term.top, csiescseq.arg[0]); break; case 'L': /* IL -- Insert <n> blank lines */ - DEFAULT(escseq.arg[0], 1); - tinsertblankline(escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tinsertblankline(csiescseq.arg[0]); break; case 'l': /* RM -- Reset Mode */ - if(escseq.priv) { - switch(escseq.arg[0]) { + if(csiescseq.priv) { + switch(csiescseq.arg[0]) { case 1: term.mode &= ~MODE_APPKEYPAD; break; @@ -1312,7 +1326,7 @@ csihandle(void) { tclearregion(0, 0, term.col-1, term.row-1); tswapscreen(); } - if(escseq.arg[0] != 1049) + if(csiescseq.arg[0] != 1049) break; case 1048: tcursor(CURSOR_LOAD); @@ -1321,7 +1335,7 @@ csihandle(void) { goto unknown; } } else { - switch(escseq.arg[0]) { + switch(csiescseq.arg[0]) { case 4: term.mode &= ~MODE_INSERT; break; @@ -1331,25 +1345,25 @@ csihandle(void) { } break; case 'M': /* DL -- Delete <n> lines */ - DEFAULT(escseq.arg[0], 1); - tdeleteline(escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tdeleteline(csiescseq.arg[0]); break; case 'X': /* ECH -- Erase <n> char */ - DEFAULT(escseq.arg[0], 1); - tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y); + DEFAULT(csiescseq.arg[0], 1); + tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y); break; case 'P': /* DCH -- Delete <n> char */ - DEFAULT(escseq.arg[0], 1); - tdeletechar(escseq.arg[0]); + DEFAULT(csiescseq.arg[0], 1); + tdeletechar(csiescseq.arg[0]); break; /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */ case 'd': /* VPA -- Move to <row> */ - DEFAULT(escseq.arg[0], 1); - tmoveto(term.c.x, escseq.arg[0]-1); + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x, csiescseq.arg[0]-1); break; case 'h': /* SM -- Set terminal mode */ - if(escseq.priv) { - switch(escseq.arg[0]) { + if(csiescseq.priv) { + switch(csiescseq.arg[0]) { case 1: term.mode |= MODE_APPKEYPAD; break; @@ -1367,7 +1381,7 @@ csihandle(void) { break; case 12: /* att610 -- Start blinking cursor (IGNORED) */ /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */ - if(escseq.narg > 1 && escseq.arg[1] != 25) + if(csiescseq.narg > 1 && csiescseq.arg[1] != 25) break; case 25: term.c.state &= ~CURSOR_HIDE; @@ -1385,7 +1399,7 @@ csihandle(void) { tclearregion(0, 0, term.col-1, term.row-1); else tswapscreen(); - if(escseq.arg[0] != 1049) + if(csiescseq.arg[0] != 1049) break; case 1048: tcursor(CURSOR_SAVE); @@ -1393,7 +1407,7 @@ csihandle(void) { default: goto unknown; } } else { - switch(escseq.arg[0]) { + switch(csiescseq.arg[0]) { case 4: term.mode |= MODE_INSERT; break; @@ -1402,15 +1416,15 @@ csihandle(void) { }; break; case 'm': /* SGR -- Terminal attribute (color) */ - tsetattr(escseq.arg, escseq.narg); + tsetattr(csiescseq.arg, csiescseq.narg); break; case 'r': /* DECSTBM -- Set Scrolling Region */ - if(escseq.priv) + if(csiescseq.priv) goto unknown; else { - DEFAULT(escseq.arg[0], 1); - DEFAULT(escseq.arg[1], term.row); - tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1); + DEFAULT(csiescseq.arg[0], 1); + DEFAULT(csiescseq.arg[1], term.row); + tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1); tmoveto(0, 0); } break; @@ -1427,8 +1441,8 @@ void csidump(void) { int i; printf("ESC["); - for(i = 0; i < escseq.len; i++) { - uint c = escseq.buf[i] & 0xff; + for(i = 0; i < csiescseq.len; i++) { + uint c = csiescseq.buf[i] & 0xff; if(isprint(c)) putchar(c); else if(c == '\n') printf("(\\n)"); else if(c == '\r') printf("(\\r)"); @@ -1440,7 +1454,80 @@ csidump(void) { void csireset(void) { - memset(&escseq, 0, sizeof(escseq)); + memset(&csiescseq, 0, sizeof(csiescseq)); +} + +void +strhandle(void) { + char *p; + + p = strescseq.buf; + + switch(strescseq.type) { + case ']': /* OSC -- Operating System Command */ + switch(p[0]) { + case '0': + case '2': + /* + * TODO: Handle special chars in string, like umlauts. + */ + if(p[1] == ';') { + if(!strncmp(strescseq.buf, "settitle ", 9)) { + XStoreName(xw.dpy, xw.win, strescseq.buf+11); + } else { + XStoreName(xw.dpy, xw.win, strescseq.buf+2); + } + } + break; + case ';': + XStoreName(xw.dpy, xw.win, strescseq.buf+1); + break; + case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */ + break; + default: + fprintf(stderr, "erresc: unknown str "); + strdump(); + break; + } + break; + case 'P': /* DSC -- Device Control String */ + case '_': /* APC -- Application Program Command */ + case '^': /* PM -- Privacy Message */ + default: + fprintf(stderr, "erresc: unknown str "); + strdump(); + /* die(""); */ + break; + } +} + +void +strparse(void) { + /* + * TODO: Implement parsing like for CSI when required. + * Format: ESC type cmd ';' arg0 [';' argn] ESC \ + */ + return; +} + +void +strdump(void) { + int i; + printf("ESC%c", strescseq.type); + for(i = 0; i < strescseq.len; i++) { + uint c = strescseq.buf[i] & 0xff; + if(isprint(c)) putchar(c); + else if(c == '\n') printf("(\\n)"); + else if(c == '\r') printf("(\\r)"); + else if(c == 0x1b) printf("(\\e)"); + else printf("(%02x)", c); + } + printf("ESC\\\n"); +} + +void +strreset(void) { + memset(&strescseq, 0, sizeof(strescseq)); } void @@ -1457,25 +1544,31 @@ tputc(char *c) { char ascii = *c; if(term.esc & ESC_START) { if(term.esc & ESC_CSI) { - escseq.buf[escseq.len++] = ascii; - if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) { + csiescseq.buf[csiescseq.len++] = ascii; + if(BETWEEN(ascii, 0x40, 0x7E) || csiescseq.len >= ESC_BUF_SIZ) { term.esc = 0; csiparse(), csihandle(); } - /* TODO: handle other OSC */ - } else if(term.esc & ESC_OSC) { - if(ascii == ';') { - term.titlelen = 0; - term.esc = ESC_START | ESC_TITLE; - } - } else if(term.esc & ESC_TITLE) { - if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) { + } else if(term.esc & ESC_STR) { + switch(ascii) { + case '\033': + term.esc = ESC_START | ESC_STR_END; + break; + case '\a': /* backwards compatibility to xterm */ term.esc = 0; - term.title[term.titlelen] = '\0'; - XStoreName(xw.dpy, xw.win, term.title); - } else { - term.title[term.titlelen++] = ascii; + strhandle(); + break; + default: + strescseq.buf[strescseq.len++] = ascii; + if (strescseq.len+1 >= STR_BUF_SIZ) { + term.esc = 0; + strhandle(); + } } + } else if(term.esc & ESC_STR_END) { + term.esc = 0; + if(ascii == '\\') + strhandle(); } else if(term.esc & ESC_ALTCHARSET) { switch(ascii) { case '0': /* Line drawing crap */ @@ -1493,8 +1586,13 @@ tputc(char *c) { case '[': term.esc |= ESC_CSI; break; - case ']': - term.esc |= ESC_OSC; + case 'P': /* DCS -- Device Control String */ + case '_': /* APC -- Application Program Command */ + case '^': /* PM -- Privacy Message */ + case ']': /* OSC -- Operating System Command */ + strreset(); + strescseq.type = ascii; + term.esc |= ESC_STR; break; case '(': term.esc |= ESC_ALTCHARSET; @@ -1541,6 +1639,9 @@ tputc(char *c) { tcursor(CURSOR_LOAD); term.esc = 0; break; + case '\\': /* ST -- Stop */ + term.esc = 0; + break; default: fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", (uchar) ascii, isprint(ascii)?ascii:'.');