diff options
Diffstat (limited to 'Tests/voltLib/volttofea_test.py')
| -rw-r--r-- | Tests/voltLib/volttofea_test.py | 1253 |
1 files changed, 1253 insertions, 0 deletions
diff --git a/Tests/voltLib/volttofea_test.py b/Tests/voltLib/volttofea_test.py new file mode 100644 index 00000000..0d8d8d28 --- /dev/null +++ b/Tests/voltLib/volttofea_test.py @@ -0,0 +1,1253 @@ +import pathlib +import shutil +import tempfile +import unittest +from io import StringIO + +from fontTools.voltLib.voltToFea import VoltToFea + +DATADIR = pathlib.Path(__file__).parent / "data" + + +class ToFeaTest(unittest.TestCase): + @classmethod + def setup_class(cls): + cls.tempdir = None + cls.num_tempfiles = 0 + + @classmethod + def teardown_class(cls): + if cls.tempdir: + shutil.rmtree(cls.tempdir, ignore_errors=True) + + @classmethod + def temp_path(cls): + if not cls.tempdir: + cls.tempdir = pathlib.Path(tempfile.mkdtemp()) + cls.num_tempfiles += 1 + return cls.tempdir / f"tmp{cls.num_tempfiles}" + + def test_def_glyph_base(self): + fea = self.parse('DEF_GLYPH ".notdef" ID 0 TYPE BASE END_GLYPH') + self.assertEqual( + fea, + "@GDEF_base = [.notdef];\n" + "table GDEF {\n" + " GlyphClassDef @GDEF_base, , , ;\n" + "} GDEF;\n", + ) + + def test_def_glyph_base_2_components(self): + fea = self.parse( + 'DEF_GLYPH "glyphBase" ID 320 TYPE BASE COMPONENTS 2 END_GLYPH' + ) + self.assertEqual( + fea, + "@GDEF_base = [glyphBase];\n" + "table GDEF {\n" + " GlyphClassDef @GDEF_base, , , ;\n" + "} GDEF;\n", + ) + + def test_def_glyph_ligature_2_components(self): + fea = self.parse('DEF_GLYPH "f_f" ID 320 TYPE LIGATURE COMPONENTS 2 END_GLYPH') + self.assertEqual( + fea, + "@GDEF_ligature = [f_f];\n" + "table GDEF {\n" + " GlyphClassDef , @GDEF_ligature, , ;\n" + "} GDEF;\n", + ) + + def test_def_glyph_mark(self): + fea = self.parse('DEF_GLYPH "brevecomb" ID 320 TYPE MARK END_GLYPH') + self.assertEqual( + fea, + "@GDEF_mark = [brevecomb];\n" + "table GDEF {\n" + " GlyphClassDef , , @GDEF_mark, ;\n" + "} GDEF;\n", + ) + + def test_def_glyph_component(self): + fea = self.parse('DEF_GLYPH "f.f_f" ID 320 TYPE COMPONENT END_GLYPH') + self.assertEqual( + fea, + "@GDEF_component = [f.f_f];\n" + "table GDEF {\n" + " GlyphClassDef , , , @GDEF_component;\n" + "} GDEF;\n", + ) + + def test_def_glyph_no_type(self): + fea = self.parse('DEF_GLYPH "glyph20" ID 20 END_GLYPH') + self.assertEqual(fea, "") + + def test_def_glyph_case_sensitive(self): + fea = self.parse( + 'DEF_GLYPH "A" ID 3 UNICODE 65 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "a" ID 4 UNICODE 97 TYPE BASE END_GLYPH\n' + ) + self.assertEqual( + fea, + "@GDEF_base = [A a];\n" + "table GDEF {\n" + " GlyphClassDef @GDEF_base, , , ;\n" + "} GDEF;\n", + ) + + def test_def_group_glyphs(self): + fea = self.parse( + 'DEF_GROUP "aaccented"\n' + 'ENUM GLYPH "aacute" GLYPH "abreve" GLYPH "acircumflex" ' + 'GLYPH "adieresis" GLYPH "ae" GLYPH "agrave" GLYPH "amacron" ' + 'GLYPH "aogonek" GLYPH "aring" GLYPH "atilde" END_ENUM\n' + "END_GROUP\n" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@aaccented = [aacute abreve acircumflex adieresis ae" + " agrave amacron aogonek aring atilde];", + ) + + def test_def_group_groups(self): + fea = self.parse( + 'DEF_GROUP "Group1"\n' + 'ENUM GLYPH "a" GLYPH "b" GLYPH "c" GLYPH "d" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "Group2"\n' + 'ENUM GLYPH "e" GLYPH "f" GLYPH "g" GLYPH "h" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "TestGroup"\n' + 'ENUM GROUP "Group1" GROUP "Group2" END_ENUM\n' + "END_GROUP\n" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@Group1 = [a b c d];\n" + "@Group2 = [e f g h];\n" + "@TestGroup = [@Group1 @Group2];", + ) + + def test_def_group_groups_not_yet_defined(self): + fea = self.parse( + 'DEF_GROUP "Group1"\n' + 'ENUM GLYPH "a" GLYPH "b" GLYPH "c" GLYPH "d" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "TestGroup1"\n' + 'ENUM GROUP "Group1" GROUP "Group2" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "TestGroup2"\n' + 'ENUM GROUP "Group2" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "TestGroup3"\n' + 'ENUM GROUP "Group2" GROUP "Group1" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "Group2"\n' + 'ENUM GLYPH "e" GLYPH "f" GLYPH "g" GLYPH "h" END_ENUM\n' + "END_GROUP\n" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@Group1 = [a b c d];\n" + "@Group2 = [e f g h];\n" + "@TestGroup1 = [@Group1 @Group2];\n" + "@TestGroup2 = [@Group2];\n" + "@TestGroup3 = [@Group2 @Group1];", + ) + + def test_def_group_glyphs_and_group(self): + fea = self.parse( + 'DEF_GROUP "aaccented"\n' + 'ENUM GLYPH "aacute" GLYPH "abreve" GLYPH "acircumflex" ' + 'GLYPH "adieresis" GLYPH "ae" GLYPH "agrave" GLYPH "amacron" ' + 'GLYPH "aogonek" GLYPH "aring" GLYPH "atilde" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "KERN_lc_a_2ND"\n' + 'ENUM GLYPH "a" GROUP "aaccented" END_ENUM\n' + "END_GROUP" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@aaccented = [aacute abreve acircumflex adieresis ae" + " agrave amacron aogonek aring atilde];\n" + "@KERN_lc_a_2ND = [a @aaccented];", + ) + + def test_def_group_range(self): + fea = self.parse( + 'DEF_GLYPH "a" ID 163 UNICODE 97 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "agrave" ID 194 UNICODE 224 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "aacute" ID 195 UNICODE 225 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "acircumflex" ID 196 UNICODE 226 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "atilde" ID 197 UNICODE 227 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "c" ID 165 UNICODE 99 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "ccaron" ID 209 UNICODE 269 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "ccedilla" ID 210 UNICODE 231 TYPE BASE END_GLYPH\n' + 'DEF_GLYPH "cdotaccent" ID 210 UNICODE 267 TYPE BASE END_GLYPH\n' + 'DEF_GROUP "KERN_lc_a_2ND"\n' + 'ENUM RANGE "a" TO "atilde" GLYPH "b" RANGE "c" TO "cdotaccent" ' + "END_ENUM\n" + "END_GROUP" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@KERN_lc_a_2ND = [a - atilde b c - cdotaccent];\n" + "@GDEF_base = [a agrave aacute acircumflex atilde c" + " ccaron ccedilla cdotaccent];\n" + "table GDEF {\n" + " GlyphClassDef @GDEF_base, , , ;\n" + "} GDEF;\n", + ) + + def test_script_without_langsys(self): + fea = self.parse('DEF_SCRIPT NAME "Latin" TAG "latn"\n' "END_SCRIPT") + self.assertEqual(fea, "") + + def test_langsys_normal(self): + fea = self.parse( + 'DEF_SCRIPT NAME "Latin" TAG "latn"\n' + 'DEF_LANGSYS NAME "Romanian" TAG "ROM "\n' + "END_LANGSYS\n" + 'DEF_LANGSYS NAME "Moldavian" TAG "MOL "\n' + "END_LANGSYS\n" + "END_SCRIPT" + ) + self.assertEqual(fea, "") + + def test_langsys_no_script_name(self): + fea = self.parse( + 'DEF_SCRIPT TAG "latn"\n' + 'DEF_LANGSYS NAME "Default" TAG "dflt"\n' + "END_LANGSYS\n" + "END_SCRIPT" + ) + self.assertEqual(fea, "") + + def test_langsys_lang_in_separate_scripts(self): + fea = self.parse( + 'DEF_SCRIPT NAME "Default" TAG "DFLT"\n' + 'DEF_LANGSYS NAME "Default" TAG "dflt"\n' + "END_LANGSYS\n" + 'DEF_LANGSYS NAME "Default" TAG "ROM "\n' + "END_LANGSYS\n" + "END_SCRIPT\n" + 'DEF_SCRIPT NAME "Latin" TAG "latn"\n' + 'DEF_LANGSYS NAME "Default" TAG "dflt"\n' + "END_LANGSYS\n" + 'DEF_LANGSYS NAME "Default" TAG "ROM "\n' + "END_LANGSYS\n" + "END_SCRIPT" + ) + self.assertEqual(fea, "") + + def test_langsys_no_lang_name(self): + fea = self.parse( + 'DEF_SCRIPT NAME "Latin" TAG "latn"\n' + 'DEF_LANGSYS TAG "dflt"\n' + "END_LANGSYS\n" + "END_SCRIPT" + ) + self.assertEqual(fea, "") + + def test_feature(self): + fea = self.parse( + 'DEF_SCRIPT NAME "Latin" TAG "latn"\n' + 'DEF_LANGSYS NAME "Romanian" TAG "ROM "\n' + 'DEF_FEATURE NAME "Fractions" TAG "frac"\n' + 'LOOKUP "fraclookup"\n' + "END_FEATURE\n" + "END_LANGSYS\n" + "END_SCRIPT\n" + 'DEF_LOOKUP "fraclookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "one" GLYPH "slash" GLYPH "two"\n' + 'WITH GLYPH "one_slash_two.frac"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup fraclookup {\n" + " sub one slash two by one_slash_two.frac;\n" + "} fraclookup;\n" + "\n" + "# Features\n" + "feature frac {\n" + " script latn;\n" + " language ROM exclude_dflt;\n" + " lookup fraclookup;\n" + "} frac;\n", + ) + + def test_feature_sub_lookups(self): + fea = self.parse( + 'DEF_SCRIPT NAME "Latin" TAG "latn"\n' + 'DEF_LANGSYS NAME "Romanian" TAG "ROM "\n' + 'DEF_FEATURE NAME "Fractions" TAG "frac"\n' + 'LOOKUP "fraclookup\\1"\n' + 'LOOKUP "fraclookup\\1"\n' + "END_FEATURE\n" + "END_LANGSYS\n" + "END_SCRIPT\n" + 'DEF_LOOKUP "fraclookup\\1" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION RTL\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "one" GLYPH "slash" GLYPH "two"\n' + 'WITH GLYPH "one_slash_two.frac"\n' + "END_SUB\n" + "END_SUBSTITUTION\n" + 'DEF_LOOKUP "fraclookup\\2" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION RTL\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "one" GLYPH "slash" GLYPH "three"\n' + 'WITH GLYPH "one_slash_three.frac"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup fraclookup {\n" + " lookupflag RightToLeft;\n" + " # fraclookup\\1\n" + " sub one slash two by one_slash_two.frac;\n" + " subtable;\n" + " # fraclookup\\2\n" + " sub one slash three by one_slash_three.frac;\n" + "} fraclookup;\n" + "\n" + "# Features\n" + "feature frac {\n" + " script latn;\n" + " language ROM exclude_dflt;\n" + " lookup fraclookup;\n" + "} frac;\n", + ) + + def test_lookup_comment(self): + fea = self.parse( + 'DEF_LOOKUP "smcp" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + 'COMMENTS "Smallcaps lookup for testing"\n' + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "a"\n' + 'WITH GLYPH "a.sc"\n' + "END_SUB\n" + 'SUB GLYPH "b"\n' + 'WITH GLYPH "b.sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup smcp {\n" + " # Smallcaps lookup for testing\n" + " sub a by a.sc;\n" + " sub b by b.sc;\n" + "} smcp;\n", + ) + + def test_substitution_single(self): + fea = self.parse( + 'DEF_LOOKUP "smcp" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "a"\n' + 'WITH GLYPH "a.sc"\n' + "END_SUB\n" + 'SUB GLYPH "b"\n' + 'WITH GLYPH "b.sc"\n' + "END_SUB\n" + "SUB WITH\n" # Empty substitution, will be ignored + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup smcp {\n" + " sub a by a.sc;\n" + " sub b by b.sc;\n" + "} smcp;\n", + ) + + def test_substitution_single_in_context(self): + fea = self.parse( + 'DEF_GROUP "Denominators" ENUM GLYPH "one.dnom" GLYPH "two.dnom" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "fracdnom" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + 'IN_CONTEXT LEFT ENUM GROUP "Denominators" GLYPH "fraction" ' + "END_ENUM\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "one"\n' + 'WITH GLYPH "one.dnom"\n' + "END_SUB\n" + 'SUB GLYPH "two"\n' + 'WITH GLYPH "two.dnom"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@Denominators = [one.dnom two.dnom];\n" + "\n" + "# Lookups\n" + "lookup fracdnom {\n" + " sub [@Denominators fraction] one' by one.dnom;\n" + " sub [@Denominators fraction] two' by two.dnom;\n" + "} fracdnom;\n", + ) + + def test_substitution_single_in_contexts(self): + fea = self.parse( + 'DEF_GROUP "Hebrew" ENUM GLYPH "uni05D0" GLYPH "uni05D1" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "HebrewCurrency" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + 'RIGHT GROUP "Hebrew"\n' + 'RIGHT GLYPH "one.Hebr"\n' + "END_CONTEXT\n" + "IN_CONTEXT\n" + 'LEFT GROUP "Hebrew"\n' + 'LEFT GLYPH "one.Hebr"\n' + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "dollar"\n' + 'WITH GLYPH "dollar.Hebr"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@Hebrew = [uni05D0 uni05D1];\n" + "\n" + "# Lookups\n" + "lookup HebrewCurrency {\n" + " sub dollar' @Hebrew one.Hebr by dollar.Hebr;\n" + " sub @Hebrew one.Hebr dollar' by dollar.Hebr;\n" + "} HebrewCurrency;\n", + ) + + def test_substitution_single_except_context(self): + fea = self.parse( + 'DEF_GROUP "Hebrew" ENUM GLYPH "uni05D0" GLYPH "uni05D1" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "HebrewCurrency" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "EXCEPT_CONTEXT\n" + 'RIGHT GROUP "Hebrew"\n' + 'RIGHT GLYPH "one.Hebr"\n' + "END_CONTEXT\n" + "IN_CONTEXT\n" + 'LEFT GROUP "Hebrew"\n' + 'LEFT GLYPH "one.Hebr"\n' + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "dollar"\n' + 'WITH GLYPH "dollar.Hebr"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@Hebrew = [uni05D0 uni05D1];\n" + "\n" + "# Lookups\n" + "lookup HebrewCurrency {\n" + " ignore sub dollar' @Hebrew one.Hebr;\n" + " sub @Hebrew one.Hebr dollar' by dollar.Hebr;\n" + "} HebrewCurrency;\n", + ) + + def test_substitution_skip_base(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "marka" GLYPH "markb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" SKIP_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [marka markb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " lookupflag IgnoreBaseGlyphs;\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_process_base(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "marka" GLYPH "markb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [marka markb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_process_marks_all(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "marka" GLYPH "markb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" PROCESS_BASE PROCESS_MARKS "ALL"' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [marka markb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_process_marks_none(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "marka" GLYPH "markb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" PROCESS_BASE PROCESS_MARKS "NONE"' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [marka markb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " lookupflag IgnoreMarks;\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_skip_marks(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "marka" GLYPH "markb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" PROCESS_BASE SKIP_MARKS ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [marka markb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " lookupflag IgnoreMarks;\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_mark_attachment(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "acutecmb" GLYPH "gravecmb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" PROCESS_BASE ' + 'PROCESS_MARKS "SomeMarks" \n' + "DIRECTION RTL\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [acutecmb gravecmb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " lookupflag RightToLeft MarkAttachmentType" + " @SomeMarks;\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_mark_glyph_set(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "acutecmb" GLYPH "gravecmb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" PROCESS_BASE ' + 'PROCESS_MARKS MARK_GLYPH_SET "SomeMarks" \n' + "DIRECTION RTL\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [acutecmb gravecmb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " lookupflag RightToLeft UseMarkFilteringSet" + " @SomeMarks;\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_process_all_marks(self): + fea = self.parse( + 'DEF_GROUP "SomeMarks" ENUM GLYPH "acutecmb" GLYPH "gravecmb" ' + "END_ENUM END_GROUP\n" + 'DEF_LOOKUP "SomeSub" PROCESS_BASE ' + "PROCESS_MARKS ALL \n" + "DIRECTION RTL\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "A"\n' + 'WITH GLYPH "A.c2sc"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@SomeMarks = [acutecmb gravecmb];\n" + "\n" + "# Lookups\n" + "lookup SomeSub {\n" + " lookupflag RightToLeft;\n" + " sub A by A.c2sc;\n" + "} SomeSub;\n", + ) + + def test_substitution_no_reversal(self): + # TODO: check right context with no reversal + fea = self.parse( + 'DEF_LOOKUP "Lookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + 'RIGHT ENUM GLYPH "a" GLYPH "b" END_ENUM\n' + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "a"\n' + 'WITH GLYPH "a.alt"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup Lookup {\n" + " sub a' [a b] by a.alt;\n" + "} Lookup;\n", + ) + + def test_substitution_reversal(self): + fea = self.parse( + 'DEF_GROUP "DFLT_Num_standardFigures"\n' + 'ENUM GLYPH "zero" GLYPH "one" GLYPH "two" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "DFLT_Num_numerators"\n' + 'ENUM GLYPH "zero.numr" GLYPH "one.numr" GLYPH "two.numr" END_ENUM\n' + "END_GROUP\n" + 'DEF_LOOKUP "RevLookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR REVERSAL\n" + "IN_CONTEXT\n" + 'RIGHT ENUM GLYPH "a" GLYPH "b" END_ENUM\n' + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GROUP "DFLT_Num_standardFigures"\n' + 'WITH GROUP "DFLT_Num_numerators"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@DFLT_Num_standardFigures = [zero one two];\n" + "@DFLT_Num_numerators = [zero.numr one.numr two.numr];\n" + "\n" + "# Lookups\n" + "lookup RevLookup {\n" + " rsub @DFLT_Num_standardFigures' [a b] by @DFLT_Num_numerators;\n" + "} RevLookup;\n", + ) + + def test_substitution_single_to_multiple(self): + fea = self.parse( + 'DEF_LOOKUP "ccmp" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "aacute"\n' + 'WITH GLYPH "a" GLYPH "acutecomb"\n' + "END_SUB\n" + 'SUB GLYPH "agrave"\n' + 'WITH GLYPH "a" GLYPH "gravecomb"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup ccmp {\n" + " sub aacute by a acutecomb;\n" + " sub agrave by a gravecomb;\n" + "} ccmp;\n", + ) + + def test_substitution_multiple_to_single(self): + fea = self.parse( + 'DEF_LOOKUP "liga" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB GLYPH "f" GLYPH "i"\n' + 'WITH GLYPH "f_i"\n' + "END_SUB\n" + 'SUB GLYPH "f" GLYPH "t"\n' + 'WITH GLYPH "f_t"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup liga {\n" + " sub f i by f_i;\n" + " sub f t by f_t;\n" + "} liga;\n", + ) + + def test_substitution_reverse_chaining_single(self): + fea = self.parse( + 'DEF_LOOKUP "numr" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR REVERSAL\n" + "IN_CONTEXT\n" + "RIGHT ENUM " + 'GLYPH "fraction" ' + 'RANGE "zero.numr" TO "nine.numr" ' + "END_ENUM\n" + "END_CONTEXT\n" + "AS_SUBSTITUTION\n" + 'SUB RANGE "zero" TO "nine"\n' + 'WITH RANGE "zero.numr" TO "nine.numr"\n' + "END_SUB\n" + "END_SUBSTITUTION" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup numr {\n" + " rsub zero - nine' [fraction zero.numr - nine.numr] by zero.numr - nine.numr;\n" + "} numr;\n", + ) + + # GPOS + # ATTACH_CURSIVE + # ATTACH + # ADJUST_PAIR + # ADJUST_SINGLE + def test_position_attach(self): + fea = self.parse( + 'DEF_LOOKUP "anchor_top" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION RTL\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + 'ATTACH GLYPH "a" GLYPH "e"\n' + 'TO GLYPH "acutecomb" AT ANCHOR "top" ' + 'GLYPH "gravecomb" AT ANCHOR "top"\n' + "END_ATTACH\n" + "END_POSITION\n" + 'DEF_ANCHOR "MARK_top" ON 120 GLYPH acutecomb COMPONENT 1 ' + "AT POS DX 0 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "MARK_top" ON 121 GLYPH gravecomb COMPONENT 1 ' + "AT POS DX 0 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "top" ON 31 GLYPH a COMPONENT 1 ' + "AT POS DX 210 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "top" ON 35 GLYPH e COMPONENT 1 ' + "AT POS DX 215 DY 450 END_POS END_ANCHOR\n" + ) + self.assertEqual( + fea, + "\n# Mark classes\n" + "markClass acutecomb <anchor 0 450> @top;\n" + "markClass gravecomb <anchor 0 450> @top;\n" + "\n" + "# Lookups\n" + "lookup anchor_top {\n" + " lookupflag RightToLeft;\n" + " pos base a\n" + " <anchor 210 450> mark @top;\n" + " pos base e\n" + " <anchor 215 450> mark @top;\n" + "} anchor_top;\n", + ) + + def test_position_attach_mkmk(self): + fea = self.parse( + 'DEF_GLYPH "brevecomb" ID 1 TYPE MARK END_GLYPH\n' + 'DEF_GLYPH "gravecomb" ID 2 TYPE MARK END_GLYPH\n' + 'DEF_LOOKUP "anchor_top" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION RTL\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + 'ATTACH GLYPH "gravecomb"\n' + 'TO GLYPH "acutecomb" AT ANCHOR "top"\n' + "END_ATTACH\n" + "END_POSITION\n" + 'DEF_ANCHOR "MARK_top" ON 1 GLYPH acutecomb COMPONENT 1 ' + "AT POS DX 0 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "top" ON 2 GLYPH gravecomb COMPONENT 1 ' + "AT POS DX 210 DY 450 END_POS END_ANCHOR\n" + ) + self.assertEqual( + fea, + "\n# Mark classes\n" + "markClass acutecomb <anchor 0 450> @top;\n" + "\n" + "# Lookups\n" + "lookup anchor_top {\n" + " lookupflag RightToLeft;\n" + " pos mark gravecomb\n" + " <anchor 210 450> mark @top;\n" + "} anchor_top;\n" + "\n" + "@GDEF_mark = [brevecomb gravecomb];\n" + "table GDEF {\n" + " GlyphClassDef , , @GDEF_mark, ;\n" + "} GDEF;\n", + ) + + def test_position_attach_in_context(self): + fea = self.parse( + 'DEF_LOOKUP "test" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION RTL\n" + 'EXCEPT_CONTEXT LEFT GLYPH "a" END_CONTEXT\n' + "AS_POSITION\n" + 'ATTACH GLYPH "a"\n' + 'TO GLYPH "acutecomb" AT ANCHOR "top" ' + 'GLYPH "gravecomb" AT ANCHOR "top"\n' + "END_ATTACH\n" + "END_POSITION\n" + 'DEF_ANCHOR "MARK_top" ON 120 GLYPH acutecomb COMPONENT 1 ' + "AT POS DX 0 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "MARK_top" ON 121 GLYPH gravecomb COMPONENT 1 ' + "AT POS DX 0 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "top" ON 31 GLYPH a COMPONENT 1 ' + "AT POS DX 210 DY 450 END_POS END_ANCHOR\n" + ) + self.assertEqual( + fea, + "\n# Mark classes\n" + "markClass acutecomb <anchor 0 450> @top;\n" + "markClass gravecomb <anchor 0 450> @top;\n" + "\n" + "# Lookups\n" + "lookup test_target {\n" + " pos base a\n" + " <anchor 210 450> mark @top;\n" + "} test_target;\n" + "\n" + "lookup test {\n" + " lookupflag RightToLeft;\n" + " ignore pos a [acutecomb gravecomb]';\n" + " pos [acutecomb gravecomb]' lookup test_target;\n" + "} test;\n", + ) + + def test_position_attach_cursive(self): + fea = self.parse( + 'DEF_LOOKUP "SomeLookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION RTL\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + 'ATTACH_CURSIVE EXIT GLYPH "a" GLYPH "b" ' + 'ENTER GLYPH "a" GLYPH "c"\n' + "END_ATTACH\n" + "END_POSITION\n" + 'DEF_ANCHOR "exit" ON 1 GLYPH a COMPONENT 1 AT POS END_POS END_ANCHOR\n' + 'DEF_ANCHOR "entry" ON 1 GLYPH a COMPONENT 1 AT POS END_POS END_ANCHOR\n' + 'DEF_ANCHOR "exit" ON 2 GLYPH b COMPONENT 1 AT POS END_POS END_ANCHOR\n' + 'DEF_ANCHOR "entry" ON 3 GLYPH c COMPONENT 1 AT POS END_POS END_ANCHOR\n' + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup SomeLookup {\n" + " lookupflag RightToLeft;\n" + " pos cursive a <anchor 0 0> <anchor 0 0>;\n" + " pos cursive c <anchor 0 0> <anchor NULL>;\n" + " pos cursive b <anchor NULL> <anchor 0 0>;\n" + "} SomeLookup;\n", + ) + + def test_position_adjust_pair(self): + fea = self.parse( + 'DEF_LOOKUP "kern1" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION RTL\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + "ADJUST_PAIR\n" + ' FIRST GLYPH "A" FIRST GLYPH "V"\n' + ' SECOND GLYPH "A" SECOND GLYPH "V"\n' + " 1 2 BY POS ADV -30 END_POS POS END_POS\n" + " 2 1 BY POS ADV -25 END_POS POS END_POS\n" + "END_ADJUST\n" + "END_POSITION\n" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup kern1 {\n" + " lookupflag RightToLeft;\n" + " enum pos A V -30;\n" + " enum pos V A -25;\n" + "} kern1;\n", + ) + + def test_position_adjust_pair_in_context(self): + fea = self.parse( + 'DEF_LOOKUP "kern1" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + 'EXCEPT_CONTEXT LEFT GLYPH "A" END_CONTEXT\n' + "AS_POSITION\n" + "ADJUST_PAIR\n" + ' FIRST GLYPH "A" FIRST GLYPH "V"\n' + ' SECOND GLYPH "A" SECOND GLYPH "V"\n' + " 2 1 BY POS ADV -25 END_POS POS END_POS\n" + "END_ADJUST\n" + "END_POSITION\n" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup kern1_target {\n" + " enum pos V A -25;\n" + "} kern1_target;\n" + "\n" + "lookup kern1 {\n" + " ignore pos A V' A';\n" + " pos V' lookup kern1_target A' lookup kern1_target;\n" + "} kern1;\n", + ) + + def test_position_adjust_single(self): + fea = self.parse( + 'DEF_LOOKUP "TestLookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + "ADJUST_SINGLE" + ' GLYPH "glyph1" BY POS ADV 0 DX 123 END_POS\n' + ' GLYPH "glyph2" BY POS ADV 0 DX 456 END_POS\n' + "END_ADJUST\n" + "END_POSITION\n" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup TestLookup {\n" + " pos glyph1 <123 0 0 0>;\n" + " pos glyph2 <456 0 0 0>;\n" + "} TestLookup;\n", + ) + + def test_position_adjust_single_in_context(self): + fea = self.parse( + 'DEF_LOOKUP "TestLookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "EXCEPT_CONTEXT\n" + 'LEFT GLYPH "leftGlyph"\n' + 'RIGHT GLYPH "rightGlyph"\n' + "END_CONTEXT\n" + "AS_POSITION\n" + "ADJUST_SINGLE" + ' GLYPH "glyph1" BY POS ADV 0 DX 123 END_POS\n' + ' GLYPH "glyph2" BY POS ADV 0 DX 456 END_POS\n' + "END_ADJUST\n" + "END_POSITION\n" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup TestLookup_target {\n" + " pos glyph1 <123 0 0 0>;\n" + " pos glyph2 <456 0 0 0>;\n" + "} TestLookup_target;\n" + "\n" + "lookup TestLookup {\n" + " ignore pos leftGlyph [glyph1 glyph2]' rightGlyph;\n" + " pos [glyph1 glyph2]' lookup TestLookup_target;\n" + "} TestLookup;\n", + ) + + def test_def_anchor(self): + fea = self.parse( + 'DEF_LOOKUP "TestLookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + 'ATTACH GLYPH "a"\n' + 'TO GLYPH "acutecomb" AT ANCHOR "top"\n' + "END_ATTACH\n" + "END_POSITION\n" + 'DEF_ANCHOR "top" ON 120 GLYPH a ' + "COMPONENT 1 AT POS DX 250 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "MARK_top" ON 120 GLYPH acutecomb ' + "COMPONENT 1 AT POS DX 0 DY 450 END_POS END_ANCHOR" + ) + self.assertEqual( + fea, + "\n# Mark classes\n" + "markClass acutecomb <anchor 0 450> @top;\n" + "\n" + "# Lookups\n" + "lookup TestLookup {\n" + " pos base a\n" + " <anchor 250 450> mark @top;\n" + "} TestLookup;\n", + ) + + def test_def_anchor_multi_component(self): + fea = self.parse( + 'DEF_LOOKUP "TestLookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + 'ATTACH GLYPH "f_f"\n' + 'TO GLYPH "acutecomb" AT ANCHOR "top"\n' + "END_ATTACH\n" + "END_POSITION\n" + 'DEF_GLYPH "f_f" ID 120 TYPE LIGATURE COMPONENTS 2 END_GLYPH\n' + 'DEF_ANCHOR "top" ON 120 GLYPH f_f ' + "COMPONENT 1 AT POS DX 250 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "top" ON 120 GLYPH f_f ' + "COMPONENT 2 AT POS DX 450 DY 450 END_POS END_ANCHOR\n" + 'DEF_ANCHOR "MARK_top" ON 120 GLYPH acutecomb ' + "COMPONENT 1 AT POS END_POS END_ANCHOR" + ) + self.assertEqual( + fea, + "\n# Mark classes\n" + "markClass acutecomb <anchor 0 0> @top;\n" + "\n" + "# Lookups\n" + "lookup TestLookup {\n" + " pos ligature f_f\n" + " <anchor 250 450> mark @top\n" + " ligComponent\n" + " <anchor 450 450> mark @top;\n" + "} TestLookup;\n" + "\n" + "@GDEF_ligature = [f_f];\n" + "table GDEF {\n" + " GlyphClassDef , @GDEF_ligature, , ;\n" + "} GDEF;\n", + ) + + def test_anchor_adjust_device(self): + fea = self.parse( + 'DEF_ANCHOR "MARK_top" ON 123 GLYPH diacglyph ' + "COMPONENT 1 AT POS DX 0 DY 456 ADJUST_BY 12 AT 34 " + "ADJUST_BY 56 AT 78 END_POS END_ANCHOR" + ) + self.assertEqual( + fea, + "\n# Mark classes\n" + "#markClass diacglyph <anchor 0 456 <device NULL>" + " <device 34 12, 78 56>> @top;", + ) + + def test_use_extension(self): + fea = self.parse( + 'DEF_LOOKUP "kern1" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR\n" + "IN_CONTEXT\n" + "END_CONTEXT\n" + "AS_POSITION\n" + "ADJUST_PAIR\n" + ' FIRST GLYPH "A" FIRST GLYPH "V"\n' + ' SECOND GLYPH "A" SECOND GLYPH "V"\n' + " 1 2 BY POS ADV -30 END_POS POS END_POS\n" + " 2 1 BY POS ADV -25 END_POS POS END_POS\n" + "END_ADJUST\n" + "END_POSITION\n" + "COMPILER_USEEXTENSIONLOOKUPS\n" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup kern1 useExtension {\n" + " enum pos A V -30;\n" + " enum pos V A -25;\n" + "} kern1;\n", + ) + + def test_unsupported_compiler_flags(self): + with self.assertLogs(level="WARNING") as logs: + fea = self.parse("CMAP_FORMAT 0 3 4") + self.assertEqual(fea, "") + self.assertEqual( + logs.output, + [ + "WARNING:fontTools.voltLib.voltToFea:Unsupported setting ignored: CMAP_FORMAT" + ], + ) + + def test_sanitize_lookup_name(self): + fea = self.parse( + 'DEF_LOOKUP "Test Lookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR IN_CONTEXT END_CONTEXT\n" + "AS_POSITION ADJUST_PAIR END_ADJUST END_POSITION\n" + 'DEF_LOOKUP "Test-Lookup" PROCESS_BASE PROCESS_MARKS ALL ' + "DIRECTION LTR IN_CONTEXT END_CONTEXT\n" + "AS_POSITION ADJUST_PAIR END_ADJUST END_POSITION\n" + ) + self.assertEqual( + fea, + "\n# Lookups\n" + "lookup Test_Lookup {\n" + " \n" + "} Test_Lookup;\n" + "\n" + "lookup Test_Lookup_ {\n" + " \n" + "} Test_Lookup_;\n", + ) + + def test_sanitize_group_name(self): + fea = self.parse( + 'DEF_GROUP "aaccented glyphs"\n' + 'ENUM GLYPH "aacute" GLYPH "abreve" END_ENUM\n' + "END_GROUP\n" + 'DEF_GROUP "aaccented+glyphs"\n' + 'ENUM GLYPH "aacute" GLYPH "abreve" END_ENUM\n' + "END_GROUP\n" + ) + self.assertEqual( + fea, + "# Glyph classes\n" + "@aaccented_glyphs = [aacute abreve];\n" + "@aaccented_glyphs_ = [aacute abreve];", + ) + + def test_cli_vtp(self): + vtp = DATADIR / "Nutso.vtp" + fea = DATADIR / "Nutso.fea" + self.cli(vtp, fea) + + def test_group_order(self): + vtp = DATADIR / "NamdhinggoSIL1006.vtp" + fea = DATADIR / "NamdhinggoSIL1006.fea" + self.cli(vtp, fea) + + def test_cli_ttf(self): + ttf = DATADIR / "Nutso.ttf" + fea = DATADIR / "Nutso.fea" + self.cli(ttf, fea) + + def test_cli_ttf_no_TSIV(self): + from fontTools.voltLib.voltToFea import main as cli + + ttf = DATADIR / "Empty.ttf" + temp = self.temp_path() + self.assertEqual(1, cli([str(ttf), str(temp)])) + + def cli(self, source, fea): + from fontTools.voltLib.voltToFea import main as cli + + temp = self.temp_path() + cli([str(source), str(temp)]) + with temp.open() as f: + res = f.read() + with fea.open() as f: + ref = f.read() + self.assertEqual(ref, res) + + def parse(self, text): + return VoltToFea(StringIO(text)).convert() + + +if __name__ == "__main__": + import sys + + sys.exit(unittest.main()) |