diff options
Diffstat (limited to 'lua/lexers/perl.lua')
| -rw-r--r-- | lua/lexers/perl.lua | 141 |
1 files changed, 76 insertions, 65 deletions
diff --git a/lua/lexers/perl.lua b/lua/lexers/perl.lua index 40727a4..085873e 100644 --- a/lua/lexers/perl.lua +++ b/lua/lexers/perl.lua @@ -1,52 +1,16 @@ --- Copyright 2006-2022 Mitchell. See LICENSE. +-- Copyright 2006-2024 Mitchell. See LICENSE. -- Perl LPeg lexer. -local lexer = require('lexer') -local token, word_match = lexer.token, lexer.word_match +local lexer = lexer local P, S = lpeg.P, lpeg.S -local lex = lexer.new('perl') - --- Whitespace. -lex:add_rule('perl', token(lexer.WHITESPACE, lexer.space^1)) +local lex = lexer.new(...) -- Keywords. -lex:add_rule('keyword', token(lexer.KEYWORD, word_match{ - 'STDIN', 'STDOUT', 'STDERR', 'BEGIN', 'END', 'CHECK', 'INIT', -- - 'require', 'use', -- - 'break', 'continue', 'do', 'each', 'else', 'elsif', 'foreach', 'for', 'if', 'last', 'local', 'my', - 'next', 'our', 'package', 'return', 'sub', 'unless', 'until', 'while', '__FILE__', '__LINE__', - '__PACKAGE__', -- - 'and', 'or', 'not', 'eq', 'ne', 'lt', 'gt', 'le', 'ge' -})) +lex:add_rule('keyword', lex:tag(lexer.KEYWORD, lex:word_match(lexer.KEYWORD))) -- Markers. -lex:add_rule('marker', token(lexer.COMMENT, word_match('__DATA__ __END__') * lexer.any^0)) - --- Functions. -lex:add_rule('function', token(lexer.FUNCTION, word_match{ - 'abs', 'accept', 'alarm', 'atan2', 'bind', 'binmode', 'bless', 'caller', 'chdir', 'chmod', - 'chomp', 'chop', 'chown', 'chr', 'chroot', 'closedir', 'close', 'connect', 'cos', 'crypt', - 'dbmclose', 'dbmopen', 'defined', 'delete', 'die', 'dump', 'each', 'endgrent', 'endhostent', - 'endnetent', 'endprotoent', 'endpwent', 'endservent', 'eof', 'eval', 'exec', 'exists', 'exit', - 'exp', 'fcntl', 'fileno', 'flock', 'fork', 'format', 'formline', 'getc', 'getgrent', 'getgrgid', - 'getgrnam', 'gethostbyaddr', 'gethostbyname', 'gethostent', 'getlogin', 'getnetbyaddr', - 'getnetbyname', 'getnetent', 'getpeername', 'getpgrp', 'getppid', 'getpriority', 'getprotobyname', - 'getprotobynumber', 'getprotoent', 'getpwent', 'getpwnam', 'getpwuid', 'getservbyname', - 'getservbyport', 'getservent', 'getsockname', 'getsockopt', 'glob', 'gmtime', 'goto', 'grep', - 'hex', 'import', 'index', 'int', 'ioctl', 'join', 'keys', 'kill', 'lcfirst', 'lc', 'length', - 'link', 'listen', 'localtime', 'log', 'lstat', 'map', 'mkdir', 'msgctl', 'msgget', 'msgrcv', - 'msgsnd', 'new', 'oct', 'opendir', 'open', 'ord', 'pack', 'pipe', 'pop', 'pos', 'printf', 'print', - 'prototype', 'push', 'quotemeta', 'rand', 'readdir', 'read', 'readlink', 'recv', 'redo', 'ref', - 'rename', 'reset', 'reverse', 'rewinddir', 'rindex', 'rmdir', 'scalar', 'seekdir', 'seek', - 'select', 'semctl', 'semget', 'semop', 'send', 'setgrent', 'sethostent', 'setnetent', 'setpgrp', - 'setpriority', 'setprotoent', 'setpwent', 'setservent', 'setsockopt', 'shift', 'shmctl', 'shmget', - 'shmread', 'shmwrite', 'shutdown', 'sin', 'sleep', 'socket', 'socketpair', 'sort', 'splice', - 'split', 'sprintf', 'sqrt', 'srand', 'stat', 'study', 'substr', 'symlink', 'syscall', 'sysread', - 'sysseek', 'system', 'syswrite', 'telldir', 'tell', 'tied', 'tie', 'time', 'times', 'truncate', - 'ucfirst', 'uc', 'umask', 'undef', 'unlink', 'unpack', 'unshift', 'untie', 'utime', 'values', - 'vec', 'wait', 'waitpid', 'wantarray', 'warn', 'write' -})) +lex:add_rule('marker', lex:tag(lexer.COMMENT, lexer.word_match('__DATA__ __END__') * lexer.any^0)) -- Strings. local delimiter_matches = {['('] = ')', ['['] = ']', ['{'] = '}', ['<'] = '>'} @@ -83,6 +47,7 @@ local literal_delimited2 = P(function(input, index) -- for 2 delimiter sets if not final_match_pos then -- using (), [], {}, or <> notation final_match_pos = lpeg.match(lexer.space^0 * patt, input, first_match_pos) end + if final_match_pos and final_match_pos < index then final_match_pos = index end return final_match_pos or #input + 1 end end) @@ -101,50 +66,96 @@ end) local lit_str = 'q' * P('q')^-1 * literal_delimited local lit_array = 'qw' * literal_delimited local lit_cmd = 'qx' * literal_delimited -local lit_tr = (P('tr') + 'y') * literal_delimited2 * S('cds')^0 -local string = token(lexer.STRING, - sq_str + dq_str + cmd_str + heredoc + lit_str + lit_array + lit_cmd + lit_tr) -local regex_str = #P('/') * lexer.last_char_includes('-<>+*!~\\=%&|^?:;([{') * - lexer.range('/', true) * S('imosx')^0 +local string = lex:tag(lexer.STRING, + sq_str + dq_str + cmd_str + heredoc + lit_str + lit_array + lit_cmd) +local regex_str = lexer.after_set('-<>+*!~\\=%&|^?:;([{', lexer.range('/', true) * S('imosx')^0) local lit_regex = 'qr' * literal_delimited * S('imosx')^0 local lit_match = 'm' * literal_delimited * S('cgimosx')^0 local lit_sub = 's' * literal_delimited2 * S('ecgimosx')^0 -local regex = token(lexer.REGEX, regex_str + lit_regex + lit_match + lit_sub) +local lit_tr = (P('tr') + 'y') * literal_delimited2 * S('cds')^0 +local regex = lex:tag(lexer.REGEX, regex_str + lit_regex + lit_match + lit_sub + lit_tr) lex:add_rule('string', string + regex) +-- Functions. +lex:add_rule('function_builtin', + lex:tag(lexer.FUNCTION_BUILTIN, lex:word_match(lexer.FUNCTION_BUILTIN)) * + #(lexer.space^0 * P('(')^-1)) +local func = lex:tag(lexer.FUNCTION, lexer.word) +local method = lpeg.B('->') * lex:tag(lexer.FUNCTION_METHOD, lexer.word) +lex:add_rule('function', (method + func) * #(lexer.space^0 * '(')) + +-- Constants. +lex:add_rule('constant', lex:tag(lexer.CONSTANT_BUILTIN, lex:word_match(lexer.CONSTANT_BUILTIN))) + -- Identifiers. -lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word)) +lex:add_rule('identifier', lex:tag(lexer.IDENTIFIER, lexer.word)) -- Comments. local line_comment = lexer.to_eol('#', true) local block_comment = lexer.range(lexer.starts_line('=' * lexer.alpha), lexer.starts_line('=cut')) -lex:add_rule('comment', token(lexer.COMMENT, block_comment + line_comment)) +lex:add_rule('comment', lex:tag(lexer.COMMENT, block_comment + line_comment)) -- Numbers. -local dec = lexer.digit^1 * ('_' * lexer.digit^1)^0 -local hex = '0' * S('xX') * lexer.xdigit^1 * ('_' * lexer.xdigit^1)^0 -local bin = '0' * S('bB') * S('01')^1 * ('_' * S('01')^1)^0 * -lexer.xdigit -local integer = S('+-')^-1 * (hex + bin + dec) -lex:add_rule('number', token(lexer.NUMBER, lexer.float + integer)) +lex:add_rule('number', lex:tag(lexer.NUMBER, lexer.number_('_'))) -- Variables. --- LuaFormatter off -local special_var = '$' * ( - '^' * S('ADEFHILMOPSTWX')^-1 + - S('\\"[]\'&`+*.,;=%~?@<>(|/!-') + - ':' * (lexer.any - ':') + - P('$') * -lexer.word + - lexer.digit^1) --- LuaFormatter on +local builtin_var_s = '$' * + (lpeg.R('09') + S('!"$%&\'()+,-./:;<=>?@\\]_`|~') + '^' * S('ACDEFHILMNOPRSTVWX')^-1 + 'ARGV') +local builtin_var_a = '@' * (S('+-_F') + 'ARGV' + 'INC' + 'ISA') +local builtin_var_h = '%' * (S('+-!') + '^' * S('H')^-1 + 'ENV' + 'INC' + 'SIG') +lex:add_rule('variable_builtin', + lex:tag(lexer.VARIABLE_BUILTIN, builtin_var_s + builtin_var_a + builtin_var_h)) +local special_var = '$' * + ('^' * S('ADEFHILMOPSTWX')^-1 + S('\\"[]\'&`+*.,;=%~?@<>(|/!-') + ':' * (lexer.any - ':') + + (P('$') * -lexer.word) + lexer.digit^1) local plain_var = ('$#' + S('$@%')) * P('$')^0 * lexer.word + '$#' -lex:add_rule('variable', token(lexer.VARIABLE, special_var + plain_var)) +lex:add_rule('variable', lex:tag(lexer.VARIABLE, special_var + plain_var)) -- Operators. -lex:add_rule('operator', token(lexer.OPERATOR, S('-<>+*!~\\=/%&|^.,?:;()[]{}'))) +lex:add_rule('operator', lex:tag(lexer.OPERATOR, S('-<>+*!~\\=/%&|^.,?:;()[]{}'))) -- Fold points. lex:add_fold_point(lexer.OPERATOR, '[', ']') lex:add_fold_point(lexer.OPERATOR, '{', '}') -lex:add_fold_point(lexer.COMMENT, lexer.fold_consecutive_lines('#')) + +-- Word lists. +lex:set_word_list(lexer.KEYWORD, { + 'STDIN', 'STDOUT', 'STDERR', 'BEGIN', 'END', 'CHECK', 'INIT', -- + 'require', 'use', -- + 'break', 'continue', 'do', 'each', 'else', 'elsif', 'foreach', 'for', 'if', 'last', 'local', 'my', + 'next', 'our', 'package', 'return', 'sub', 'unless', 'until', 'while', '__FILE__', '__LINE__', + '__PACKAGE__', -- + 'and', 'or', 'not', 'eq', 'ne', 'lt', 'gt', 'le', 'ge' +}) + +lex:set_word_list(lexer.FUNCTION_BUILTIN, { + 'abs', 'accept', 'alarm', 'atan2', 'bind', 'binmode', 'bless', 'caller', 'chdir', 'chmod', + 'chomp', 'chop', 'chown', 'chr', 'chroot', 'closedir', 'close', 'connect', 'cos', 'crypt', + 'dbmclose', 'dbmopen', 'defined', 'delete', 'die', 'dump', 'each', 'endgrent', 'endhostent', + 'endnetent', 'endprotoent', 'endpwent', 'endservent', 'eof', 'eval', 'exec', 'exists', 'exit', + 'exp', 'fcntl', 'fileno', 'flock', 'fork', 'format', 'formline', 'getc', 'getgrent', 'getgrgid', + 'getgrnam', 'gethostbyaddr', 'gethostbyname', 'gethostent', 'getlogin', 'getnetbyaddr', + 'getnetbyname', 'getnetent', 'getpeername', 'getpgrp', 'getppid', 'getpriority', 'getprotobyname', + 'getprotobynumber', 'getprotoent', 'getpwent', 'getpwnam', 'getpwuid', 'getservbyname', + 'getservbyport', 'getservent', 'getsockname', 'getsockopt', 'glob', 'gmtime', 'goto', 'grep', + 'hex', 'import', 'index', 'int', 'ioctl', 'join', 'keys', 'kill', 'lcfirst', 'lc', 'length', + 'link', 'listen', 'localtime', 'log', 'lstat', 'map', 'mkdir', 'msgctl', 'msgget', 'msgrcv', + 'msgsnd', 'new', 'oct', 'opendir', 'open', 'ord', 'pack', 'pipe', 'pop', 'pos', 'printf', 'print', + 'prototype', 'push', 'quotemeta', 'rand', 'readdir', 'read', 'readlink', 'recv', 'redo', 'ref', + 'rename', 'reset', 'reverse', 'rewinddir', 'rindex', 'rmdir', 'scalar', 'seekdir', 'seek', + 'select', 'semctl', 'semget', 'semop', 'send', 'setgrent', 'sethostent', 'setnetent', 'setpgrp', + 'setpriority', 'setprotoent', 'setpwent', 'setservent', 'setsockopt', 'shift', 'shmctl', 'shmget', + 'shmread', 'shmwrite', 'shutdown', 'sin', 'sleep', 'socket', 'socketpair', 'sort', 'splice', + 'split', 'sprintf', 'sqrt', 'srand', 'stat', 'study', 'substr', 'symlink', 'syscall', 'sysread', + 'sysseek', 'system', 'syswrite', 'telldir', 'tell', 'tied', 'tie', 'time', 'times', 'truncate', + 'ucfirst', 'uc', 'umask', 'undef', 'unlink', 'unpack', 'unshift', 'untie', 'utime', 'values', + 'vec', 'wait', 'waitpid', 'wantarray', 'warn', 'write' +}) + +lex:set_word_list(lexer.CONSTANT_BUILTIN, { + 'ARGV', 'ARGVOUT', 'DATA', 'ENV', 'INC', 'SIG', 'STDERR', 'STDIN', 'STDOUT' +}) + +lexer.property['scintillua.comment'] = '#' return lex |