SourceReader Class Reference

#include <sourcereader.hh>

Public Member Functions
bool	cached (string fname)
	Check if a file as been read and is in the "cache". More...
Tree	getlist (string fname)
	Return the list of definitions file contains. More...
Tree	expandlist (Tree ldef)
	Return the list of definitions where all imports have been expanded. More...
vector< string >	listSrcFiles ()
	Return a vector of pathnames representing the list of all the source files that have been required to evaluate process (those in fFileCache) More...

Private Member Functions
Tree	parse (string fname)
	Parse a single faust source file. More...
Tree	expandrec (Tree ldef, set< string > &visited, Tree lresult)

Private Attributes
map< string, Tree >	fFileCache
vector< string >	fFilePathnames

Detailed Description

Definition at line 16 of file sourcereader.hh.

Member Function Documentation

bool SourceReader::cached

(

string

fname

)

Check if a file as been read and is in the "cache".

Parameters

fname

the name of the file to check

Returns

true if the file is in the cache

Definition at line 257 of file sourcereader.cpp.

{
    return fFileCache.find(fname) != fFileCache.end();
}

Tree SourceReader::expandlist

(

Tree

ldef

)

Return the list of definitions where all imports have been expanded.

Parameters

ldef	the list of definitions to expand

Returns

the expanded list of definitions

Definition at line 306 of file sourcereader.cpp.

References nil.

Referenced by main(), and realeval().

{
    set<string> visited;
    return expandrec(ldef, visited, nil);   
}

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Tree SourceReader::expandrec ( Tree  ldef, set< string > &  visited, Tree  lresult  )

private

Definition at line 312 of file sourcereader.cpp.

References cons(), hd(), isImportFile(), isNil(), tl(), and tree2str().

{
    for (;!isNil(ldef); ldef = tl(ldef)) {
        Tree d = hd(ldef); 
        Tree fname;
        if (isNil(d)) {
            // skill null definitions produced by declarations
        } else if (isImportFile(d,fname)) {
            string f = tree2str(fname);
            //cerr << "import(" << f << ")" << endl;
            
            //string f = tree2str(fname);
            if (visited.find(f) == visited.end()) {
                visited.insert(f);
                //Tree l = getlist(f);
                lresult = expandrec(getlist(f), visited, lresult);
            }
            
        } else {
            lresult = cons(d, lresult);
        }
    }
    return lresult;
}

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Tree SourceReader::getlist

(

string

fname

)

Return the list of definitions file contains.

Cache the result.

Parameters

fname

the name of the file to check

Returns

the list of definitions it contains

Definition at line 270 of file sourcereader.cpp.

Referenced by realeval().

{
    if (!cached(fname)) {
        fFileCache[fname] = parse(fname);
    }
    if (fFileCache[fname] == 0) exit(1);
    return fFileCache[fname];
}

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vector< string > SourceReader::listSrcFiles

(

)

Return a vector of pathnames representing the list of all the source files that have been required to evaluate process (those in fFileCache)

Definition at line 286 of file sourcereader.cpp.

Referenced by declareAutoDoc(), main(), printDoc(), and printfaustlistings().

{
//  vector<string>                      srcfiles;

//  for (map<string, Tree>::const_iterator p = fFileCache.begin(); p != fFileCache.end(); p++) {
//      srcfiles.push_back(p->first);
//  }

//  return srcfiles;    
    return fFilePathnames;
}

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Tree SourceReader::parse ( string  fname )

private

Parse a single faust source file.

returns the list of definitions it contains.

Parameters

fname

the name of the file to parse

Returns

the list of definitions it contains

Definition at line 189 of file sourcereader.cpp.

References fopensearch(), gResult, http_fetch(), http_perror(), yy_scan_string(), yyerr, yyfilename, yyin, yylineno, yyparse(), and yyrestart().

{
    string  fullpath;
    char*   fileBuf = 0;
    
    yyerr = 0;
    
    yyfilename = fname.c_str();
    if (strstr(yyfilename,"http://") != 0) {
        // We are requested to parse an URL file
        int ret = http_fetch(yyfilename, &fileBuf);
        if (ret == -1) {
            http_perror("http fetch");
            exit(1);
        }
        yy_scan_string(fileBuf);
        yylineno = 1;
        int r = yyparse();
        if (r) {
            fprintf(stderr, "Parse error : code = %d \n", r);
        }
        if (yyerr > 0) {
            //fprintf(stderr, "Erreur de parsing 2, count = %d \n", yyerr);
            exit(1);
        }
        
        // we have parsed a valid file
        fFilePathnames.push_back(fullpath);
        free(fileBuf);
        return gResult;

    } else {
        // test for local url
        if (strstr(yyfilename,"file://") != 0) {
            yyfilename  = &yyfilename[7]; // skip 'file://'
        }
        
        // We are requested to parse a regular file
        yyin = fopensearch(yyfilename, fullpath);
        if (yyin == NULL) {
            fprintf(stderr, "ERROR : Unable to open file  %s \n", yyfilename); 
            exit(1);
        }
        yyrestart(yyin);    // make sure we scan from file again (in case we scanned a string just before)
        yylineno = 1;
        int r = yyparse();
        if (r) { 
            fprintf(stderr, "Parse error : code = %d \n", r); 
        }
        if (yyerr > 0) {
            //fprintf(stderr, "Erreur de parsing 2, count = %d \n", yyerr); 
            exit(1);
        }

        // we have parsed a valid file
        fFilePathnames.push_back(fullpath);
        return gResult;
    }
}

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Member Data Documentation

map<string, Tree> SourceReader::fFileCache

private

Definition at line 18 of file sourcereader.hh.

vector<string> SourceReader::fFilePathnames

private

Definition at line 19 of file sourcereader.hh.

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

• sourcereader.hh
• sourcereader.cpp