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maps, significant.

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This commit is contained in:
Neil 2022-02-13 21:38:03 -08:00
parent a1be205862
commit 794dc2206f
2 changed files with 11 additions and 8 deletions
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2
src/lex.h
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@ -6,7 +6,7 @@ int lex_looks_like_day(const char *);
#define LEX_SYMBOL X(END), X(ERROR), X(TEXT), X(BANG), X(BRACKET), X(WHITE), \
X(MAP), \
/* Commands */ X(DEFAULT), X(SOURCE)
/* Commands */ X(SIGNIFICANT), X(DEFAULT), X(SOURCE)
#define X(n) n
struct lex {

17
src/lex.re_c.c
View File

@ -105,8 +105,8 @@ glyph = [^ \t\n\r\v\f![\x00];
glyphs = glyph+;
// inside the block
decimal = [1-9][0-9]*;
number = ([1-9][0-9]* | [0])? "." [0-9]+ | [1-9][0-9]* | [0];
natural = [1-9][0-9]*;
decimal = "-"? ([1-9][0-9]* | [0])? "." [0-9]+ | [1-9][0-9]* | [0];
id = [a-zA-Z_][a-zA-Z_\-0-9]{0,63};
*/
@ -140,15 +140,18 @@ scan:
<text> "![" :=> image
<text> "[" :=> command
<image> * { printf("image(broken)\n");return 0; }
<image> ws* "osm" ws* "](geo:" @s0 number "," @s1 number ")" {
scan.condition = yyctext;
x->s0 = s0, x->s1 = s1;
<image> ws* "osm" ws* "](geo:" @s0 decimal "," @s1 decimal ")" => text {
x->symbol = MAP, x->s0 = s0, x->s1 = s1;
printf("Got a map.\n");
return 1;
}
<image> * { printf("image(broken)\n");return 0; }
<command> ws+ { scan.is_ws_expected = 0; goto scan; }
<command> @s0 natural @s1
{ if(scan.is_ws_expected) return x->symbol = ERROR, 0;
return x->symbol = SIGNIFICANT, scan.is_ws_expected = 1,
x->s0 = s0, x->s1 = s1, 1; }
<command> "source"
{ if(scan.is_ws_expected) return x->symbol = ERROR, 0;
return scan.is_ws_expected = 1, x->symbol = SOURCE, 1; }
@ -157,7 +160,7 @@ scan:
return scan.is_ws_expected = 1, x->symbol = DEFAULT, 1; }
<command> ":" => command_args { scan.is_ws_expected = 0; goto scan; }
<command_args> [^\n\r\]\x00]+ { printf("Command args fixme\n"); goto scan; }
<command_args> "]" :=> text
<command, command_args> "]" :=> text
<command, command_args> * { return x->symbol = ERROR, 0; }
*/
}