Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-09 12:23:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

cex: color the counterexamples

Browse Source 
Use colors to show the counterexamples and the derivations in color,
to highlight their structure.  Align the outputs, and add i18n
support. Reduce width by using a one-space separator instead of
two-space.

From

    Example  A  •  B  C
    First  derivation  s ::=[ a ::=[ A  • ]  x ::=[ B  C ] ]
    Second derivation  s ::=[ y ::=[ A  •  B ]  c ::=[ C ] ]

to

    Example              A • B C
    First derivation     s ::=[ a ::=[ A • ] x ::=[ B C ] ]
    Example              A • B C
    Second derivation    s ::=[ y ::=[ A • B ] c ::=[ C ] ]

with colors.

* data/bison-default.css (cex-dot, cex-0, cex-1, cex-2, cex-3, cex-4)
(cex-5, cex-6, cex-7, cex-step, cex-leaf): New.
* src/derivation.c (derivation_print_styled_impl): New.
(derivation_print, derivation_print_leaves): Use it.
* src/counterexample.c: Reformat the output.
* tests/counterexample.at: Adjust.
This commit is contained in:
Akim Demaille
2020-05-23 19:13:01 +02:00
parent 296e2f90ab
commit ae5edcc23b
5 changed files with 197 additions and 147 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
data/bison-default.css
View File

@@ -30,5 +30,28 @@
/* "Sections" in traces (--trace). */
.trace0 { color: green; }
/* Syntax error messages. */
.expected { color: green; }
.unexpected { color: red; }
/* Counterexamples. */
/* Cex: point in rule. */
.cex-dot { color: red; }
/* Cex: coloring various rules. */
.cex-0 { color: yellow; }
.cex-1 { color: green; }
.cex-2 { color: blue; }
.cex-3 { color: cobalt; }
.cex-4 { color: violet; }
.cex-5 { color: orange; }
.cex-6 { color: brown; }
.cex-7 { color: mauve; }
/* Cex: derivation rewriting steps. */
.cex-step { font-style: italic; }
/* Cex: leaves of a derivation. */
.cex-leaf { font-weight: 600; }