st

My build of suckless' st.
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commit c79df9f78d0defed1c7420201416c10768c46076
parent 4cdcc395397f7b7db48265f5ce0949effaf99c1f
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sun,  2 Sep 2012 19:09:35 +0200

Enable multiple arguments in SM and RM

SM and RM can receive multiple parameters, but the code only was accepting
only one. This patch join the code of set and reset modes (SM and RM) in a
common function and uses a loop which deals with all the arguments of the
sequence. This patch improves xterm and vt100 compability.
---
 st.c |  180 ++++++++++++++++++++++++++++--------------------------------------
 1 file changed, 76 insertions(+), 104 deletions(-)
Diffstat:
Mst.c | 180+++++++++++++++++++++++++++++++++----------------------------------------------
1 file changed, 76 insertions(+), 104 deletions(-)

diff --git a/st.c b/st.c @@ -273,6 +273,7 @@ static void tsetchar(char*); static void tsetscroll(int, int); static void tswapscreen(void); static void tsetdirt(int, int); +static void tsetmode(bool, bool, int *, int); static void tfulldirt(void); static void ttynew(void); @@ -1178,6 +1179,79 @@ tsetscroll(int t, int b) { term.bot = b; } +#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit))) + +void +tsetmode(bool priv, bool set, int *args, int narg) { + int *lim, mode; + + for (lim = args + narg; args < lim; ++args) { + if(priv) { + switch(*args) { + case 1: + MODBIT(term.mode, set, MODE_APPKEYPAD); + break; + case 5: /* DECSCNM -- Reverve video */ + mode = term.mode; + MODBIT(term.mode,set, MODE_REVERSE); + if (mode != term.mode) + draw(); + break; + case 7: + MODBIT(term.mode, set, MODE_WRAP); + break; + case 20: + MODBIT(term.mode, set, MODE_CRLF); + break; + case 12: /* att610 -- Start blinking cursor (IGNORED) */ + break; + case 25: + MODBIT(term.c.state, !set, CURSOR_HIDE); + break; + case 1000: /* 1000,1002: enable xterm mouse report */ + MODBIT(term.mode, set, MODE_MOUSEBTN); + break; + case 1002: + MODBIT(term.mode, set, MODE_MOUSEMOTION); + break; + case 1049: /* = 1047 and 1048 */ + case 47: + case 1047: + if(IS_SET(MODE_ALTSCREEN)) + tclearregion(0, 0, term.col-1, term.row-1); + if ((set && !IS_SET(MODE_ALTSCREEN)) || + (!set && IS_SET(MODE_ALTSCREEN))) { + tswapscreen(); + } + if (*args != 1049) + break; + /* pass through */ + case 1048: + tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); + break; + default: + fprintf(stderr, + "erresc: unknown private set/reset mode %d\n", + *args); + break; + } + } else { + switch(*args) { + case 4: + MODBIT(term.mode, set, MODE_INSERT); + break; + default: + fprintf(stderr, + "erresc: unknown set/reset mode %d\n", + *args); + break; + } + } + } +} +#undef MODBIT + + void csihandle(void) { switch(csiescseq.mode) { @@ -1291,58 +1365,7 @@ csihandle(void) { tinsertblankline(csiescseq.arg[0]); break; case 'l': /* RM -- Reset Mode */ - if(csiescseq.priv) { - switch(csiescseq.arg[0]) { - case 1: - term.mode &= ~MODE_APPKEYPAD; - break; - case 5: /* DECSCNM -- Remove reverse video */ - if(IS_SET(MODE_REVERSE)) { - term.mode &= ~MODE_REVERSE; - draw(); - } - break; - case 7: - term.mode &= ~MODE_WRAP; - break; - case 12: /* att610 -- Stop blinking cursor (IGNORED) */ - break; - case 20: - term.mode &= ~MODE_CRLF; - break; - case 25: - term.c.state |= CURSOR_HIDE; - break; - case 1000: /* disable X11 xterm mouse reporting */ - term.mode &= ~MODE_MOUSEBTN; - break; - case 1002: - term.mode &= ~MODE_MOUSEMOTION; - break; - case 1049: /* = 1047 and 1048 */ - case 47: - case 1047: - if(IS_SET(MODE_ALTSCREEN)) { - tclearregion(0, 0, term.col-1, term.row-1); - tswapscreen(); - } - if(csiescseq.arg[0] != 1049) - break; - case 1048: - tcursor(CURSOR_LOAD); - break; - default: - goto unknown; - } - } else { - switch(csiescseq.arg[0]) { - case 4: - term.mode &= ~MODE_INSERT; - break; - default: - goto unknown; - } - } + tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg); break; case 'M': /* DL -- Delete <n> lines */ DEFAULT(csiescseq.arg[0], 1); @@ -1366,58 +1389,7 @@ csihandle(void) { tmoveto(term.c.x, csiescseq.arg[0]-1); break; case 'h': /* SM -- Set terminal mode */ - if(csiescseq.priv) { - switch(csiescseq.arg[0]) { - case 1: - term.mode |= MODE_APPKEYPAD; - break; - case 5: /* DECSCNM -- Reverve video */ - if(!IS_SET(MODE_REVERSE)) { - term.mode |= MODE_REVERSE; - draw(); - } - break; - case 7: - term.mode |= MODE_WRAP; - break; - case 20: - term.mode |= MODE_CRLF; - break; - case 12: /* att610 -- Start blinking cursor (IGNORED) */ - /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */ - if(csiescseq.narg > 1 && csiescseq.arg[1] != 25) - break; - case 25: - term.c.state &= ~CURSOR_HIDE; - break; - case 1000: /* 1000,1002: enable xterm mouse report */ - term.mode |= MODE_MOUSEBTN; - break; - case 1002: - term.mode |= MODE_MOUSEMOTION; - break; - case 1049: /* = 1047 and 1048 */ - case 47: - case 1047: - if(IS_SET(MODE_ALTSCREEN)) - tclearregion(0, 0, term.col-1, term.row-1); - else - tswapscreen(); - if(csiescseq.arg[0] != 1049) - break; - case 1048: - tcursor(CURSOR_SAVE); - break; - default: goto unknown; - } - } else { - switch(csiescseq.arg[0]) { - case 4: - term.mode |= MODE_INSERT; - break; - default: goto unknown; - } - }; + tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg); break; case 'm': /* SGR -- Terminal attribute (color) */ tsetattr(csiescseq.arg, csiescseq.narg);