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Diffstat (limited to 'unoidl/source/sourceprovider-scanner.l')
| -rw-r--r-- | unoidl/source/sourceprovider-scanner.l | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/unoidl/source/sourceprovider-scanner.l b/unoidl/source/sourceprovider-scanner.l new file mode 100644 index 000000000..bdedfcffc --- /dev/null +++ b/unoidl/source/sourceprovider-scanner.l @@ -0,0 +1,253 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +%option bison-bridge +%option bison-locations +%option extra-type="unoidl::detail::SourceProviderScannerData *" +%option never-interactive +%option nounistd +%option noyywrap +%option noinput +%option nounput +%option reentrant +%option warn +%option yylineno + +%top { + +#include "sal/config.h" + +#include <algorithm> +#include <cassert> +#include <cstddef> +#include <cstring> + +} + +%{ + +#include <rtl/math.h> +#include <rtl/string.hxx> +#include <rtl/ustring.hxx> +#include <rtl/textenc.h> +#include <sal/types.h> +#include <unoidl/unoidl.hxx> + +#include "sourceprovider-parser-requires.hxx" +#include <sourceprovider-parser.hxx> +#include "sourceprovider-scanner.hxx" + +namespace unoidl::detail { + +static std::size_t sourceProviderScannerInput( + SourceProviderScannerData * data, char * buffer, std::size_t size) +{ + assert(data != nullptr); + if (data->sourcePosition == data->sourceEnd) { + return YY_NULL; + } + assert(data->sourcePosition < data->sourceEnd); + size = std::min<std::size_t>(size, data->sourceEnd - data->sourcePosition); + std::memcpy(buffer, data->sourcePosition, size); + data->sourcePosition += size; + return size; +} + +} + +#define YY_INPUT(buf, result, max_size) ((result) = \ + ::unoidl::detail::sourceProviderScannerInput(yyextra, (buf), (max_size))) + +namespace { + +int nonZeroIntegerLiteral( + char const * text, std::size_t length, sal_Int16 radix, sal_uInt64 * value, + unoidl::detail::SourceProviderScannerData * data) +{ + assert(text != nullptr); + assert(length != 0); + assert(value != nullptr); + assert(data != nullptr); + std::size_t n = length; + switch (text[length - 1]) { + case 'L': + case 'U': + case 'l': + case 'u': + --n; + break; + default: + break; + } + *value = OString(text, n).toUInt64(radix); + if (*value == 0) { + data->errorMessage = "out-of-range integer literal " + + OUString(text, length, RTL_TEXTENCODING_ASCII_US); + return TOK_ERROR; + } + return TOK_INTEGER; +} + +} + +%} + +%x comment1 comment2 doc docdepr + +DIGIT [0-9] +UPPER [A-Z] +LOWER [a-z] +ALPHA {UPPER}|{LOWER} +ALNUM {DIGIT}|{ALPHA} + +%% + +[ \t\r] +\n *yylloc = yylineno; + +"//" BEGIN comment1; +"#" BEGIN comment1; //TODO: only at start of line +<comment1>. +<comment1>\n *yylloc = yylineno; BEGIN INITIAL; + +"/*" BEGIN comment2; +"/**" BEGIN doc; +"/***" BEGIN comment2; + +<comment2,doc>"*/" BEGIN INITIAL; +<docdepr>"*/" BEGIN INITIAL; return TOK_DEPRECATED; + +<comment2,docdepr>. +<comment2,doc,docdepr>\n *yylloc = yylineno; +<comment2,doc,docdepr><<EOF>> { + yyextra->errorMessage = "unterminated comment"; + return TOK_ERROR; +} + +<doc>[ \t\r] +<doc>"@deprecated" BEGIN docdepr; +<doc>"*" +<doc>[^ \t\r\n*]+ + +[%&()*+,\-/:;<=>[\]^{|}~] return yytext[0]; + +"..." return TOK_ELLIPSIS; +"::" return TOK_COLONS; +"<<" return TOK_LEFTSHIFT; +">>" return TOK_RIGHTSHIFT; + +"FALSE" return TOK_FALSE; +"False" return TOK_FALSE; +"TRUE" return TOK_TRUE; +"True" return TOK_TRUE; +"any" return TOK_ANY; +"attribute" return TOK_ATTRIBUTE; +"boolean" return TOK_BOOLEAN; +"bound" return TOK_BOUND; +"byte" return TOK_BYTE; +"char" return TOK_CHAR; +"const" return TOK_CONST; +"constants" return TOK_CONSTANTS; +"constrained" return TOK_CONSTRAINED; +"double" return TOK_DOUBLE; +"enum" return TOK_ENUM; +"exception" return TOK_EXCEPTION; +"float" return TOK_FLOAT; +"get" return TOK_GET; +"hyper" return TOK_HYPER; +"in" return TOK_IN; +"inout" return TOK_INOUT; +"interface" return TOK_INTERFACE; +"long" return TOK_LONG; +"maybeambiguous" return TOK_MAYBEAMBIGUOUS; +"maybedefault" return TOK_MAYBEDEFAULT; +"maybevoid" return TOK_MAYBEVOID; +"module" return TOK_MODULE; +"optional" return TOK_OPTIONAL; +"out" return TOK_OUT; +"property" return TOK_PROPERTY; +"published" return TOK_PUBLISHED; +"raises" return TOK_RAISES; +"readonly" return TOK_READONLY; +"removable" return TOK_REMOVABLE; +"sequence" return TOK_SEQUENCE; +"service" return TOK_SERVICE; +"set" return TOK_SET; +"short" return TOK_SHORT; +"singleton" return TOK_SINGLETON; +"string" return TOK_STRING; +"struct" return TOK_STRUCT; +"transient" return TOK_TRANSIENT; +"type" return TOK_TYPE; +"typedef" return TOK_TYPEDEF; +"unsigned" return TOK_UNSIGNED; +"void" return TOK_VOID; + +{UPPER}("_"?{ALNUM})*|{LOWER}{ALNUM}* { + yylval->sval = new OString(yytext); + return TOK_IDENTIFIER; +} + +({ALPHA}|"_")({ALNUM}|"_")* { + yyextra->errorMessage = "illegal identifier " + + OUString(yytext, yyleng, RTL_TEXTENCODING_ASCII_US); + return TOK_ERROR; +} + +0+[LUlu]? | +0[Xx]0+[LUlu]? { + yylval->ival = 0; + return TOK_INTEGER; +} + +0[0-7]+[LUlu]? { + return nonZeroIntegerLiteral(yytext, yyleng, 8, &yylval->ival, yyextra); +} + +[1-9]{DIGIT}*[LUlu]? { + return nonZeroIntegerLiteral(yytext, yyleng, 10, &yylval->ival, yyextra); +} + +0[Xx][0-9A-Fa-f]+[LUlu]? { + return nonZeroIntegerLiteral( + yytext + 2, yyleng - 2, 16, &yylval->ival, yyextra); +} + +{DIGIT}+[Ee][+\-]?{DIGIT}+[Ff]? | +{DIGIT}*"."{DIGIT}+([Ee][+\-]?{DIGIT}+)?[Ff]? { + rtl_math_ConversionStatus s; + yylval->fval = rtl_math_stringToDouble( + yytext, yytext + yyleng, '.', 0, &s, nullptr); + if (s == rtl_math_ConversionStatus_OutOfRange) { + yyextra->errorMessage = "out-of-range floating-point literal " + + OUString(yytext, yyleng, RTL_TEXTENCODING_ASCII_US); + return TOK_ERROR; + } + return TOK_FLOATING; +} + +{DIGIT}({ALNUM}|"_")* { + yyextra->errorMessage = "illegal numeric literal " + + OUString(yytext, yyleng, RTL_TEXTENCODING_ASCII_US); + return TOK_ERROR; +} + +. { + char c = yytext[0]; + yyextra->errorMessage = c >= ' ' && c <= '~' + ? OUString("invalid character \"" + OUStringChar(c) + "\"") + : OUString( + "invalid byte x" + + OUString::number(static_cast<unsigned char>(c), 16).toAsciiUpperCase()); + return TOK_ERROR; +} + +%% + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |