X-Git-Url: https://git.armaanb.net/?p=st.git;a=blobdiff_plain;f=st.c;h=754cf96aefa2d33ece7bd6ff5a80f7e540518050;hp=2d901ab66e2436c95906d5edeb77ee05e7ae5058;hb=HEAD;hpb=e6e2c6199f102f1459b53717050eee27832f4f87 diff --git a/st.c b/st.c index 2d901ab..754cf96 100644 --- a/st.c +++ b/st.c @@ -51,7 +51,6 @@ enum term_mode { MODE_ECHO = 1 << 4, MODE_PRINT = 1 << 5, MODE_UTF8 = 1 << 6, - MODE_SIXEL = 1 << 7, }; enum cursor_movement { @@ -78,12 +77,11 @@ enum charset { enum escape_state { ESC_START = 1, ESC_CSI = 2, - ESC_STR = 4, /* OSC, PM, APC */ + ESC_STR = 4, /* DCS, OSC, PM, APC */ ESC_ALTCHARSET = 8, ESC_STR_END = 16, /* a final string was encountered */ ESC_TEST = 32, /* Enter in test mode */ ESC_UTF8 = 64, - ESC_DCS =128, }; typedef struct { @@ -188,20 +186,22 @@ static void tputc(Rune); static void treset(void); static void tscrollup(int, int); static void tscrolldown(int, int); -static void tsetattr(int *, int); -static void tsetchar(Rune, Glyph *, int, int); +static void tsetattr(const int *, int); +static void tsetchar(Rune, const Glyph *, int, int); static void tsetdirt(int, int); static void tsetscroll(int, int); static void tswapscreen(void); -static void tsetmode(int, int, int *, int); +static void tsetmode(int, int, const int *, int); static int twrite(const char *, int, int); static void tfulldirt(void); static void tcontrolcode(uchar ); static void tdectest(char ); static void tdefutf8(char); -static int32_t tdefcolor(int *, int *, int); +static int32_t tdefcolor(const int *, int *, int); static void tdeftran(char); static void tstrsequence(uchar); +static void tsetcolor(int, int, int, uint32_t, uint32_t); +static char * findlastany(char *, const char**, size_t); static void drawregion(int, int, int, int); @@ -228,10 +228,10 @@ static int iofd = 1; static int cmdfd; static pid_t pid; -static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; -static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; -static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; -static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; +static const uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; +static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; +static const Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; +static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; ssize_t xwrite(int fd, const char *s, size_t len) @@ -271,12 +271,14 @@ xrealloc(void *p, size_t len) } char * -xstrdup(char *s) +xstrdup(const char *s) { - if ((s = strdup(s)) == NULL) + char *p; + + if ((p = strdup(s)) == NULL) die("strdup: %s\n", strerror(errno)); - return s; + return p; } size_t @@ -520,7 +522,7 @@ selsnap(int *x, int *y, int direction) { int newx, newy, xt, yt; int delim, prevdelim; - Glyph *gp, *prevgp; + const Glyph *gp, *prevgp; switch (sel.snap) { case SNAP_WORD: @@ -593,7 +595,7 @@ getsel(void) { char *str, *ptr; int y, bufsize, lastx, linelen; - Glyph *gp, *last; + const Glyph *gp, *last; if (sel.ob.x == -1) return NULL; @@ -760,7 +762,7 @@ stty(char **args) } int -ttynew(char *line, char *cmd, char *out, char **args) +ttynew(const char *line, char *cmd, const char *out, char **args) { int m, s; @@ -1188,9 +1190,9 @@ tmoveto(int x, int y) } void -tsetchar(Rune u, Glyph *attr, int x, int y) +tsetchar(Rune u, const Glyph *attr, int x, int y) { - static char *vt100_0[62] = { /* 0x41 - 0x7e */ + static const char *vt100_0[62] = { /* 0x41 - 0x7e */ "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */ 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */ 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */ @@ -1302,7 +1304,7 @@ tdeleteline(int n) } int32_t -tdefcolor(int *attr, int *npar, int l) +tdefcolor(const int *attr, int *npar, int l) { int32_t idx = -1; uint r, g, b; @@ -1352,7 +1354,7 @@ tdefcolor(int *attr, int *npar, int l) } void -tsetattr(int *attr, int l) +tsetattr(const int *attr, int l) { int i; int32_t idx; @@ -1470,9 +1472,9 @@ tsetscroll(int t, int b) } void -tsetmode(int priv, int set, int *args, int narg) +tsetmode(int priv, int set, const int *args, int narg) { - int alt, *lim; + int alt; const int *lim; for (lim = args + narg; args < lim; ++args) { if (priv) { @@ -1855,13 +1857,21 @@ strhandle(void) case ']': /* OSC -- Operating System Command */ switch (par) { case 0: + if (narg > 1) { + xsettitle(strescseq.args[1]); + xseticontitle(strescseq.args[1]); + } + return; case 1: + if (narg > 1) + xseticontitle(strescseq.args[1]); + return; case 2: if (narg > 1) xsettitle(strescseq.args[1]); return; case 52: - if (narg > 2) { + if (narg > 2 && allowwindowops) { dec = base64dec(strescseq.args[2]); if (dec) { xsetsel(dec); @@ -1897,7 +1907,6 @@ strhandle(void) xsettitle(strescseq.args[0]); return; case 'P': /* DCS -- Device Control String */ - term.mode |= ESC_DCS; case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ return; @@ -2015,7 +2024,7 @@ void tdumpline(int n) { char buf[UTF_SIZ]; - Glyph *bp, *end; + const Glyph *bp, *end; bp = &term.line[n][0]; end = &bp[MIN(tlinelen(n), term.col) - 1]; @@ -2091,12 +2100,9 @@ tdectest(char c) void tstrsequence(uchar c) { - strreset(); - switch (c) { case 0x90: /* DCS -- Device Control String */ c = 'P'; - term.esc |= ESC_DCS; break; case 0x9f: /* APC -- Application Program Command */ c = '_'; @@ -2108,6 +2114,7 @@ tstrsequence(uchar c) c = ']'; break; } + strreset(); strescseq.type = c; term.esc |= ESC_STR; } @@ -2305,7 +2312,7 @@ tputc(Rune u) Glyph *gp; control = ISCONTROL(u); - if (u < 127 || !IS_SET(MODE_UTF8 | MODE_SIXEL)) { + if (u < 127 || !IS_SET(MODE_UTF8)) { c[0] = u; width = len = 1; } else { @@ -2326,23 +2333,11 @@ tputc(Rune u) if (term.esc & ESC_STR) { if (u == '\a' || u == 030 || u == 032 || u == 033 || ISCONTROLC1(u)) { - term.esc &= ~(ESC_START|ESC_STR|ESC_DCS); - if (IS_SET(MODE_SIXEL)) { - /* TODO: render sixel */; - term.mode &= ~MODE_SIXEL; - return; - } + term.esc &= ~(ESC_START|ESC_STR); term.esc |= ESC_STR_END; goto check_control_code; } - if (IS_SET(MODE_SIXEL)) { - /* TODO: implement sixel mode */ - return; - } - if (term.esc&ESC_DCS && strescseq.len == 0 && u == 'q') - term.mode |= MODE_SIXEL; - if (strescseq.len+len >= strescseq.siz) { /* * Here is a bug in terminals. If the user never sends @@ -2454,7 +2449,7 @@ twrite(const char *buf, int buflen, int show_ctrl) int n; for (n = 0; n < buflen; n += charsize) { - if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { + if (IS_SET(MODE_UTF8)) { /* process a complete utf8 char */ charsize = utf8decode(buf + n, &u, buflen - n); if (charsize == 0) @@ -2598,7 +2593,8 @@ draw(void) drawregion(0, 0, term.col, term.row); xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], - term.ocx, term.ocy, term.line[term.ocy][term.ocx]); + term.ocx, term.ocy, term.line[term.ocy][term.ocx], + term.line[term.ocy], term.col); term.ocx = cx; term.ocy = term.c.y; xfinishdraw(); @@ -2612,3 +2608,127 @@ redraw(void) tfulldirt(); draw(); } + +/* select and copy the previous url on screen (do nothing if there's no url). + * known bug: doesn't handle urls that span multiple lines (wontfix) + * known bug: only finds first url on line (mightfix) + */ + +void +tsetcolor( int row, int start, int end, uint32_t fg, uint32_t bg ) +{ + int i = start; + for( ; i < end; ++i ) + { + term.line[row][i].fg = fg; + term.line[row][i].bg = bg; + } +} + +char * +findlastany(char *str, const char** find, size_t len) +{ + char* found = NULL; + int i = 0; + for(found = str + strlen(str) - 1; found >= str; --found) { + for(i = 0; i < len; i++) { + if(strncmp(found, find[i], strlen(find[i])) == 0) { + return found; + } + } + } + + return NULL; +} + +/* +** Select and copy the previous url on screen (do nothing if there's no url). +** +** FIXME: doesn't handle urls that span multiple lines; will need to add support +** for multiline "getsel()" first +*/ +void +copyurl(const Arg *arg) { + /* () and [] can appear in urls, but excluding them here will reduce false + * positives when figuring out where a given url ends. + */ + static char URLCHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789-._~:/?#@!$&'*+,;=%"; + + static const char* URLSTRINGS[] = {"http://", "https://"}; + + /* remove highlighting from previous selection if any */ + if(sel.ob.x >= 0 && sel.oe.x >= 0) + tsetcolor(sel.nb.y, sel.ob.x, sel.oe.x + 1, defaultfg, defaultbg); + + int i = 0, + row = 0, /* row of current URL */ + col = 0, /* column of current URL start */ + startrow = 0, /* row of last occurrence */ + colend = 0, /* column of last occurrence */ + passes = 0; /* how many rows have been scanned */ + + char *linestr = calloc(term.col+1, sizeof(Rune)); + char *c = NULL, + *match = NULL; + + row = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.y : term.bot; + LIMIT(row, term.top, term.bot); + startrow = row; + + colend = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.x : term.col; + LIMIT(colend, 0, term.col); + + /* + ** Scan from (term.bot,term.col) to (0,0) and find + ** next occurrance of a URL + */ + while(passes !=term.bot + 2) { + /* Read in each column of every row until + ** we hit previous occurrence of URL + */ + for (col = 0, i = 0; col < colend; ++col,++i) { + linestr[i] = term.line[row][col].u; + } + linestr[term.col] = '\0'; + + if ((match = findlastany(linestr, URLSTRINGS, + sizeof(URLSTRINGS)/sizeof(URLSTRINGS[0])))) + break; + + if (--row < term.top) + row = term.bot; + + colend = term.col; + passes++; + }; + + if (match) { + /* must happen before trim */ + selclear(); + sel.ob.x = strlen(linestr) - strlen(match); + + /* trim the rest of the line from the url match */ + for (c = match; *c != '\0'; ++c) + if (!strchr(URLCHARS, *c)) { + *c = '\0'; + break; + } + + /* highlight selection by inverting terminal colors */ + tsetcolor(row, sel.ob.x, sel.ob.x + strlen( match ), defaultbg, defaultfg); + + /* select and copy */ + sel.mode = 1; + sel.type = SEL_REGULAR; + sel.oe.x = sel.ob.x + strlen(match)-1; + sel.ob.y = sel.oe.y = row; + selnormalize(); + tsetdirt(sel.nb.y, sel.ne.y); + xsetsel(getsel()); + xclipcopy(); + } + + free(linestr); +}