From e205057ff28d64ef5684bd534c0d753fd5d44772 Mon Sep 17 00:00:00 2001 From: "Kartik K. Agaram" Date: Tue, 25 Jan 2022 22:31:53 -0800 Subject: highlight [[wikiwords]] in prose These are just hints that there's something worth jumping to. The jumping still happens using ctrl-g. --- src/kilo.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 71 insertions(+), 24 deletions(-) (limited to 'src') diff --git a/src/kilo.c b/src/kilo.c index 0692164..789d7e5 100644 --- a/src/kilo.c +++ b/src/kilo.c @@ -67,12 +67,16 @@ #define HL_STRING 6 #define HL_NUMBER 7 #define HL_MATCH 8 /* Search match. */ +#define HL_SELECTABLE 9 +#define HL_SELECTABLE_BORDER 10 struct editorSyntax { char **keywords; - char singleline_comment_start[2]; + char *singleline_comment_start; char *multiline_comment_start; char *multiline_comment_end; + char *selectable_start; + char *selectable_end; }; /* This structure represents a single line of the file we are editing. */ @@ -144,13 +148,19 @@ char *Lua_HL_keywords[] = { NULL }; -/* Here we define an array of syntax highlights by extensions, keywords, - * comments delimiters. */ struct editorSyntax LuaSyntax = { Lua_HL_keywords, "--", /* line comment */ - "--[[", /* multiline comment start */ - "--]]" /* multline comment stop */ + "--[[", "--]]", /* multline comment */ + NULL, NULL /* no selectables */ +}; + +/* Prose */ +struct editorSyntax ProseSyntax = { + NULL, /* no keywords */ + NULL, /* no line comment */ + NULL, NULL, /* no multiline comment */ + "[[", "]]" /* "selectables" */ }; #define HLDB_ENTRIES (sizeof(HLDB)/sizeof(HLDB[0])) @@ -182,12 +192,14 @@ static void editorUpdateSyntax(erow *row) { if (E.syntax == NULL) return; /* No syntax, everything is HL_NORMAL. */ - int i, prev_sep, in_string, in_comment; + int i, prev_sep, in_string, in_comment, in_selectable; char *p; char **keywords = E.syntax->keywords; char *scs = E.syntax->singleline_comment_start; char *mcs = E.syntax->multiline_comment_start; char *mce = E.syntax->multiline_comment_end; + char *ss = E.syntax->selectable_start; + char *se = E.syntax->selectable_end; /* Point to the first non-space char. */ p = row->render; @@ -199,6 +211,7 @@ static void editorUpdateSyntax(erow *row) { prev_sep = 1; /* Tell the parser if 'i' points to start of word. */ in_string = 0; /* Are we inside "" or '' ? */ in_comment = 0; /* Are we inside multi-line comment? */ + in_selectable = 0; /* Are we inside [[]] in prose? */ /* If the previous line has an open comment, this line starts * with an open comment state. */ @@ -207,34 +220,60 @@ static void editorUpdateSyntax(erow *row) { while(*p) { /* Handle multi line comments. */ - if (in_comment) { - row->hl[i] = HL_MLCOMMENT; - if (starts_with(p, mce)) { - memset(&row->hl[i],HL_MLCOMMENT, strlen(mce)); - p += strlen(mce); i += strlen(mce); - in_comment = 0; - prev_sep = 1; - continue; - } else { + if (mcs && mce) { + if (in_comment) { + row->hl[i] = HL_MLCOMMENT; + if (starts_with(p, mce)) { + memset(&row->hl[i],HL_MLCOMMENT, strlen(mce)); + p += strlen(mce); i += strlen(mce); + in_comment = 0; + prev_sep = 1; + continue; + } else { + prev_sep = 0; + p++; i++; + continue; + } + } else if (starts_with(p, mcs)) { + memset(&row->hl[i],HL_MLCOMMENT, strlen(mcs)); + p += strlen(mcs); i += strlen(mcs); + in_comment = 1; prev_sep = 0; - p++; i++; continue; } - } else if (starts_with(p, mcs)) { - memset(&row->hl[i],HL_MLCOMMENT, strlen(mcs)); - p += strlen(mcs); i += strlen(mcs); - in_comment = 1; - prev_sep = 0; - continue; } /* Handle single-line comments. */ - if (prev_sep && *p == scs[0] && *(p+1) == scs[1]) { + if (scs && prev_sep && starts_with(p, scs)) { /* From here to end is a comment */ memset(row->hl+i,HL_COMMENT,row->rsize-i); return; } + /* Handle selectable widgets */ + if (ss && se) { + if (in_selectable) { + if (starts_with(p, se)) { + memset(&row->hl[i],HL_SELECTABLE_BORDER, strlen(se)); + p += strlen(se); i += strlen(se); + in_selectable = 0; + prev_sep = 1; + continue; + } else { + row->hl[i] = HL_SELECTABLE; + prev_sep = 0; + p++; i++; + continue; + } + } else if (starts_with(p, ss)) { + memset(&row->hl[i],HL_SELECTABLE_BORDER, strlen(ss)); + p += strlen(ss); i += strlen(ss); + in_selectable = 1; + prev_sep = 0; + continue; + } + } + /* Handle "" and '' */ if (in_string) { row->hl[i] = HL_STRING; @@ -275,7 +314,7 @@ static void editorUpdateSyntax(erow *row) { } /* Handle keywords and lib calls */ - if (prev_sep) { + if (keywords && prev_sep) { int j; int ileft = row->rsize-i; for (j = 0; keywords[j]; j++) { @@ -323,6 +362,8 @@ static int editorSyntaxToColorPair(int hl) { case HL_STRING: return COLOR_PAIR_LUA_CONSTANT; case HL_NUMBER: return COLOR_PAIR_LUA_CONSTANT; case HL_MATCH: return COLOR_PAIR_MATCH; + case HL_SELECTABLE: return COLOR_PAIR_SELECTABLE; + case HL_SELECTABLE_BORDER: return COLOR_PAIR_FADE; default: return COLOR_PAIR_NORMAL; } } @@ -1229,7 +1270,10 @@ int editProse(lua_State* L, char* filename) { Quit = 0; Back_to_big_picture = 0; initEditor(); + E.syntax = &ProseSyntax; editorOpen(filename); + attrset(A_NORMAL); + clear(); while(!Quit) { /* update on resize */ E.startcol = LINE_NUMBER_SPACE; @@ -1348,11 +1392,14 @@ int editProseFrom(lua_State* L, char* filename, int rowoff, int coloff, int cy, Quit = 0; Back_to_big_picture = 0; initEditor(); + E.syntax = &ProseSyntax; E.rowoff = rowoff; E.coloff = coloff; E.cy = cy; E.cx = cx; editorOpen(filename); + attrset(A_NORMAL); + clear(); while(!Quit) { /* update on resize */ E.startcol = LINE_NUMBER_SPACE; -- cgit 1.4.1-2-gfad0