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path: root/libbuild2/lexer.hxx
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2020-06-19Fix lexer to fail on invalid UTF-8 sequencesKaren Arutyunov1-0/+29
2020-06-10Handle special variable names when spelled as $(<char>) rather than $<char>Boris Kolpackov1-0/+3
2020-06-10Handle special variable names in base lexer via mode dataBoris Kolpackov1-0/+7
2020-05-27Add support for value subscript after expansionsBoris Kolpackov1-15/+23
Value subscript is only recognized in evaluation contexts (due to ambiguity with wildcard patterns; consider: $x[123].txt) and should be unseparated from the previous token. For example: x = ($y[1]) x = (($f ? $y : $z)[1]) x = ($identity($y)[$z])
2020-05-27Initial support for ad hoc recipes (still work in progress)Boris Kolpackov1-20/+44
2020-05-01Fix outstanding issue with directive vs assignment differentiationBoris Kolpackov1-5/+10
Specifically, now the following does the right thing: print +foo
2020-03-06Restrict buildfiles and testscripts with only Unicode graphic characters, ↵Karen Arutyunov1-4/+9
'\t', '\r', and '\n'
2020-03-05Use utf8_validator for buildfile and testscript lexersKaren Arutyunov1-2/+5
2020-02-26Adapt to adding validator to butl::char_scannerKaren Arutyunov1-2/+2
2020-02-07Drop copyright notice from source codeKaren Arutyunov1-1/+0
2019-11-15Generalize attributes to be comma-separated with arbitrary valuesBoris Kolpackov1-4/+6
Before: x = [string null] After: x = [string, null]
2019-11-14Cleanup attribute parsing codeBoris Kolpackov1-2/+0
2019-11-14Tighten up attribute recognition during parsingBoris Kolpackov1-15/+31
Now it should be possible to use `[]` for wildcard patterns, for example: foo = foo.[hit]xx Note that a leading bracket expression will still be recognized as attributes and escaping or quoting it will inhibit pattern matching. To resolve this case we need to specify an empty attribute list: foo = [] [abc]-foo.cxx
2019-11-11Use path_name for `-` to stdin/stdout translationKaren Arutyunov1-5/+5
2019-11-07Initial work on path_name use for `-` to stdin/stdout translationBoris Kolpackov1-7/+6
2019-11-04Add support for configuration exporting and importingBoris Kolpackov1-1/+1
The new config.export variable specifies the alternative file to write the configuration to as part of the configure meta-operation. For example: $ b configure: proj/ config.export=proj-config.build The config.export value "applies" only to the projects on whose root scope it is specified or if it is a global override (the latter is a bit iffy but we allow it, for example, to dump everything to stdout). This means that in order to save a subproject's configuration we will have to use a scope-specific override (since the default will apply to the outermost amalgamation). For example: $ b configure: subproj/ subproj/config.export=.../subproj-config.build This could be somewhat unnatural but then it will be the amalgamation whose configuration we normally want to export. The new config.import variable specifies additional configuration files to be loaded after the project's default config.build, if any. For example: $ b create: cfg/,cc config.import=my-config.build Similar to config.export, the config.import value "applies" only to the project on whose root scope it is specified or if it is a global override. This allows the use of the standard override "positioning" machinery (i.e., where the override applies) to decide where the extra configuration files are loaded. The resulting semantics is quite natural and consistent with command line variable overrides, for example: $ b config.import=.../config.build # outermost amalgamation $ b ./config.import=.../config.build # this project $ b !config.import=.../config.build # every project Both config.export and config.import recognize the special `-` file name as an instruction to write/read to/from stdout/stdin, respectively. For example: $ b configure: src-prj/ config.export=- | b configure: dst-prj/ config.import=-
2019-09-30Reserve `:` in `case` pattern expression for future match extraction supportBoris Kolpackov1-1/+1
2019-09-30Add support for custom match/extract functions in switch expressionBoris Kolpackov1-1/+5
2019-09-30Add support for `case` pattern alternativesBoris Kolpackov1-14/+18
case <pattern>[ | <pattern>...]
2019-09-30Pattern matching support (switch): multiple values implementationBoris Kolpackov1-10/+13
2019-07-01Split build system into library and driverBoris Kolpackov1-0/+207