idep_AliasUtil Struct Reference

#include <idep_aliasutil.h>

List of all members.

Static Public Member Functions
int	readAliases (idep_AliasTable *table, std::ostream &err, std::istream &in, const char *inputName)
int	readAliases (idep_AliasTable *table, std::ostream &err, const char *file)

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Member Function Documentation

int idep_AliasUtil::readAliases (  idep_AliasTable *  table, std::ostream &  err, const char *  file )  [static]

Definition at line 199 of file idep_alutil.cxx. References IOERROR, and readAliases(). { enum { IOERROR = -1 }; std::ifstream in(fileName); if (!in) { return IOERROR; } return readAliases(table, orr, in, fileName); }

int idep_AliasUtil::readAliases (  idep_AliasTable *  table, std::ostream &  err, std::istream &  in, const char *  inputName )  [static]

Definition at line 39 of file idep_alutil.cxx. References NEWLINE_CHAR, NULL_CHAR, State, tryToAlias(), and warning(). Referenced by idep_LinkDep::readAliases(), readAliases(), and idep_AliasDep::readAliases(). { // The following is a state-machine description of the alias language: enum State { START, // starting a new alias CONTINUE_0, // continue - no previous identifiers IDENT_0, // ident - no previous identifiers CONTINUE_1, // continue - one previous identifier CONTINUE_NL, // continue - newline terminated IDENT_NL, // ident - newline terminated NEWLINE_BL, // newline - blank line terminated CONTINUE_BL, // continue - blank line terminated IDENT_BL, // ident - blank line terminated NUM_STATES // must be last entry } state = START; enum Input { CONTINUE, // continuation character by it self NEWLINE, // end of line IDENT, // indentifier (not the previous two) NUM_INPUTS // must be last entry } input; enum Action { NOP, // do nothing BEG_CUR, // set component name to current token BEG_PRE, // set component name to previous token BEG_PRE_CUR, // set component name to previous and try current token TRY_CUR, // try to alias current token to component name TRY_PRE, // try to alias previous token to component name TRY_PRE_CUR, // try to alias both tokens to component name END, // unset component name NUM_ACTIONS // must be last entry }; static State nextStateTable[NUM_STATES][NUM_INPUTS] = { //CONTINUE NEWLINE IDENT { CONTINUE_0, START, IDENT_0 }, // START { CONTINUE_1, START, IDENT_NL }, // CONTINUE_0 { CONTINUE_1, NEWLINE_BL, IDENT_NL }, // IDENT_0 { CONTINUE_NL, IDENT_0, IDENT_NL }, // CONTINUE_1 { CONTINUE_NL, IDENT_NL, IDENT_NL }, // CONTINUE_NL { CONTINUE_NL, START, IDENT_NL }, // IDENT_NL { CONTINUE_BL, START, IDENT_BL }, // NEWLINE_BL { CONTINUE_BL, IDENT_BL, IDENT_BL }, // CONTINUE_BL { CONTINUE_BL, NEWLINE_BL, IDENT_BL } // IDENT_BL }; static Action actionTable[NUM_STATES][NUM_INPUTS] = { //CONTINUE NEWLINE IDENT { NOP, NOP, BEG_CUR }, // START { BEG_PRE, NOP, BEG_PRE_CUR }, // CONTINUE_0 { NOP, NOP, TRY_CUR }, // IDENT_0 { TRY_PRE, NOP, TRY_PRE_CUR }, // CONTINUE_1 { TRY_PRE, NOP, TRY_PRE_CUR }, // CONTINUE_NL { NOP, END, TRY_CUR }, // IDENT_NL { NOP, END, TRY_CUR }, // NEWLINE_BL { TRY_PRE, NOP, TRY_PRE_CUR }, // CONTINUE_BL { NOP, NOP, TRY_CUR } // IDENT_BL }; const char *const EMPTY_NAME = ""; const char NULL_CHAR = *EMPTY_NAME; const char COMMENT_CHAR = '#'; const char CONTINUE_CHAR = '\\'; const char NEWLINE_CHAR = '\n'; int numBadAliases = 0; int lineno = 1; idep_String componentName = EMPTY_NAME; idep_String lastToken = EMPTY_NAME; Input lastInput = IDENT; for (idep_TokenIter it(in); it; ++it) { if (*it() == COMMENT_CHAR) { while (*it() != NEWLINE_CHAR) { ++it; // ignore all tokens until newline } } // Determine the input type: switch (*it()) { case CONTINUE_CHAR: { input = NULL_CHAR == it()[1] ? CONTINUE : IDENT; } break; case NEWLINE_CHAR: { input = NEWLINE; } break; default: { input = IDENT; } break; }; // Perform the selected action: switch (actionTable[state][input]) { case NOP: { } break; case BEG_CUR: { componentName = it(); } break; case BEG_PRE: { componentName = lastToken; warning(orr, inputName, lineno) << '"' << lastToken << "\" << used as component name." << std::endl; } break; case BEG_PRE_CUR: { componentName = lastToken; numBadAliases += tryToAlias(table, orr, inputName, lineno, componentName, it()); warning(orr, inputName, lineno) << '"' << lastToken << "\" << used as component name." << std::endl; } break; case TRY_CUR: { numBadAliases += tryToAlias(table, orr, inputName, lineno, componentName, it()); } break; case TRY_PRE: { numBadAliases += tryToAlias(table, orr, inputName, lineno, componentName, lastToken); warning(orr, inputName, lineno) << '"' << lastToken << "\" << used as alias name." << std::endl; } break; case TRY_PRE_CUR: { numBadAliases += tryToAlias(table, orr, inputName, lineno, componentName, lastToken); numBadAliases += tryToAlias(table, orr, inputName, lineno, componentName, it()); warning(orr, inputName, lineno) << '"' << lastToken << "\" << used as alias name." << std::endl; } break; case END: { componentName = EMPTY_NAME; } break; default: case NUM_ACTIONS: { assert(0); } }; // Advance to the next state: if (NEWLINE == input) { ++lineno; // end of line } lastToken = it(); lastInput = input; state = nextStateTable[state][input]; } return numBadAliases; // 0 on success }

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The documentation for this struct was generated from the following files:

• idep_aliasutil.h
• idep_alutil.cxx

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