/* * Substitute - perform substitution */ vi_rc Substitute( linenum n1, linenum n2, char *data ) { char *sstr, *rstr, *newr; char flag[20], *linedata; bool iflag = false; bool gflag = false; bool undoflag = false; bool restline = false; bool splitpending = false; bool undoline = false; int i, rlen, slen; bool splitme; long changecnt = 0, linecnt = 0; linenum llineno, ll, lastline = 0, extra; i_mark pos; vi_rc rc; LastSubstituteCancelled = 0; LastChangeCount = 0; LastLineCount = 0; sstr = alloca( MAX_INPUT_LINE ); if( sstr == NULL ) { return( ERR_NO_STACK ); } strcpy( sstr, data ); rc = ModificationTest(); if( rc != ERR_NO_ERR ) { return( rc ); } strcpy( data, sstr ); rstr = alloca( MAX_INPUT_LINE ); if( rstr == NULL ) { return( ERR_NO_STACK ); } if( NextWordSlash( data, sstr ) < 0 ) { return( ERR_INVALID_SUBS_CMD ); } if( NextWordSlash( data, rstr ) < 0 ) { return( ERR_INVALID_SUBS_CMD ); } slen = NextWord1( data, flag ); for( i = 0; i < slen; i++ ) { switch( flag[i] ) { case 'g': gflag = true; break; case 'i': case 'c': iflag = true; break; } } rc = CurrentRegComp( sstr ); if( rc != ERR_NO_ERR ) { return( rc ); } /* * verify last line */ if( n2 > CurrentFile->fcbs.tail->end_line ) { rc = CFindLastLine( &ll ); if( rc != ERR_NO_ERR ) { return( rc ); } if( n2 > ll ) { return( ERR_INVALID_LINE_RANGE ); } } /* * set for start of search */ if( EditFlags.Verbose && EditFlags.EchoOn ) { ClearWindow( MessageWindow ); } SaveCurrentFilePos(); llineno = n1 - 1; EditFlags.AllowRegSubNewline = true; newr = StaticAlloc(); for( pos.column = 0, pos.line = n1; pos.line <= n2; nextSearchStartPos( &pos, gflag, rlen ) ) { /* * get regular expression, and build replacement string */ rc = FindRegularExpression( NULL, &pos, &linedata, n2, 0 ); if( rc != ERR_NO_ERR || pos.line > n2 ) { break; } slen = GetCurrRegExpLength(); splitme = RegSub( CurrentRegularExpression, rstr, newr, pos.line ); rlen = strlen( newr ); ProcessingMessage( pos.line ); /* * if in global mode, see if we already have an undo for * this line */ if( gflag ) { if( lastline != pos.line ) { undoline = false; } } /* * interactive mode? yes, then display text and ask to change */ if( iflag ) { change_resp rsp; if( !restline ) { ClearWindow( MessageWindow ); } restline = true; GoToLineNoRelCurs( pos.line ); if( EditFlags.GlobalInProgress ) { EditFlags.DisplayHold = false; DCDisplayAllLines(); EditFlags.DisplayHold = true; } HilightSearchString( &pos, slen ); rsp = ChangePrompt(); if( rsp == CHANGE_NO ) { ResetDisplayLine(); rlen = 1; continue; } else if( rsp == CHANGE_CANCEL ) { ResetDisplayLine(); LastSubstituteCancelled = 1; break; } else if( rsp == CHANGE_ALL ) { ResetDisplayLine(); iflag = false; } } /* * set up for global undo if we haven't already */ if( !undoflag ) { StartUndoGroup( UndoStack ); undoflag = true; } /* * bump change counts */ changecnt++; if( llineno != pos.line ) { if( splitpending ) { splitpending = false; extra = SplitUpLine( llineno ); n2 += extra; pos.line += extra; } linecnt++; llineno = pos.line; } /* * get copy of line, and verify that new stuff fits */ CurrentPos.line = pos.line; rc = CGimmeLinePtr( pos.line, &CurrentFcb, &CurrentLine ); if( rc != ERR_NO_ERR ) { break; } if( CurrentLine->len + rlen - slen >= EditVars.MaxLine ) { rc = ERR_LINE_FULL; break; } /* * now build the individual undo */ CurrentFcb->non_swappable = true; if( !undoline ) { CurrentLineReplaceUndoStart(); CurrentLineReplaceUndoEnd( true ); if( gflag ) { undoline = true; lastline = pos.line; } } /* * remove the old string */ GetCurrentLine(); WorkLine->len = ReplaceSubString( WorkLine->data, WorkLine->len, pos.column, pos.column + slen - 1, newr, rlen ); if( iflag ) { DisplayWorkLine( true ); } ReplaceCurrentLine(); /* * if not global, only do this change on this line */ if( splitme ) { splitpending = true; } CurrentFcb->non_swappable = false; } StaticFree( newr ); EditFlags.AllowRegSubNewline = false; /* * is there still a split line pending? */ if( splitpending ) { SplitUpLine( llineno ); } RestoreCurrentFilePos(); if( restline ) { SetCurrentLine( CurrentPos.line ); GoToColumnOK( CurrentPos.column ); } if( undoflag ) { EndUndoGroup( UndoStack ); } switch( rc ) { case ERR_NO_ERR: case ERR_LINE_FULL: case ERR_FIND_PAST_TERM_LINE: case ERR_FIND_NOT_FOUND: case ERR_FIND_END_OF_FILE: /* * display results */ if( rc == ERR_LINE_FULL ) { Message1( "Stopped at line %l - line full", pos.line ); } else { Message1( "%l changes on %l lines", changecnt, linecnt ); LastLineCount = linecnt; LastChangeCount = changecnt; } DCDisplayAllLines(); rc = ERR_NO_ERR; break; default: break; } return( rc ); } /* Substitute */
/* * SrcAssign - assign a value to a variable */ vi_rc SrcAssign( const char *data, vlist *vl ) { int i, j, k, l; long val; bool rxflag = false; bool envflag = false; bool setflag = false; bool expflag = false; bool timeflag = false; bool lnumflag = false; char tmp[MAX_SRC_LINE], tmp1[MAX_SRC_LINE], name[MAX_SRC_LINE]; const char *v1; char *t; vars *v; jmp_buf jmpaddr; time_t tod; bool check_end; char tmpstr[MAX_STR]; /* * get assign syntax : * ASSIGN %v = /v1/(r)($)(@)(x)(l)(t) * possible v1: * strlen %a * strchr %a ch * substr %a n1 n2 */ data = GetNextWord1( data, tmp ); if( *tmp == '\0' ) { return( ERR_SRC_INVALID_ASSIGN ); } if( !VarName( name, tmp, vl ) ) { return( ERR_SRC_INVALID_ASSIGN ); } data = GetNextWord1( data, tmp ); if( *tmp == '\0' ) { return( ERR_SRC_INVALID_ASSIGN ); } if( stricmp( tmp, "=" ) != 0 ) { return( ERR_SRC_INVALID_ASSIGN ); } data = SkipLeadingSpaces( data ); if( data[0] == '/' || data[0] == '"' ) { check_end = false; if( data[0] == '"' ) { data = GetNextWord( data, tmp, SingleQuote ); if( data[0] == '"' ) { check_end = true; } } else { data = GetNextWord( data, tmp, SingleSlash ); if( data[0] == '/' ) { check_end = true; } } if( check_end ) { for( ++data; data[0] != '\0'; data++ ) { switch( data[0] ) { case 't': timeflag = true; break; case 'r': rxflag = true; break; case '$': envflag = true; break; case '@': setflag = true; break; case 'x': expflag = true; break; case 'l': lnumflag = true; break; } } } Expand( tmp1, tmp, vl ); } else { data = GetNextWord1( data, tmp ); if( *tmp == '\0' ) { return( ERR_SRC_INVALID_ASSIGN ); } j = Tokenize( StrTokens, tmp, false ); if( j != TOK_INVALID ) { data = GetNextWord1( data, tmp ); if( *tmp == '\0' ) { return( ERR_SRC_INVALID_ASSIGN ); } if( !VarName( tmp1, tmp, vl ) ) { return( ERR_SRC_INVALID_ASSIGN ); } v = VarFind( tmp1, vl ); switch( j ) { case STR_T_STRLEN: if( v != NULL ) { sprintf( tmp1, "%d", v->len ); } else { strcpy( tmp1, "0" ); } break; case STR_T_SUBSTR: data = GetNextWord1( data, tmp ); if( *tmp == '\0' ) { return( ERR_SRC_INVALID_ASSIGN ); } Expand( tmp1, tmp, vl ); i = atoi( tmp1 ) - 1; data = GetNextWord1( data, tmp ); if( *tmp == '\0' ) { return( ERR_SRC_INVALID_ASSIGN ); } Expand( tmp1, tmp, vl ); j = atoi( tmp1 ) - 1; if( v == NULL ) { tmp1[0] = '\0'; break; } if( j >= v->len || i < 0 ) { tmp1[0] = '\0'; } else { l = 0; for( k = i; k <= j; k++ ) { tmp1[l++] = v->value[k]; } tmp1[l] = '\0'; } break; case STR_T_STRCHR: data = GetNextWord1( data, tmp ); if( *tmp == '\0' ) { return( ERR_SRC_INVALID_ASSIGN ); } Expand( tmp1, tmp, vl ); if( v == NULL ) { j = -1; } else { t = strchr( v->value, tmp1[0] ); if( t != NULL ) { j = t - v->value; } else { j = -1; } j++; } sprintf( tmp1, "%d", j ); break; } } else { Expand( tmp1, tmp, vl ); } } /* * regular expression subs. */ if( rxflag && CurrentRegularExpression != NULL ) { RegSub( CurrentRegularExpression, tmp1, tmp, CurrentPos.line ); strcpy( tmp1, tmp ); } /* * special processing */ if( envflag ) { v1 = getenv( tmp1 ); if( v1 == NULL ) { v1 = ""; } } else if( setflag ) { v1 = GetASetVal( tmp1, tmpstr ); } else if( timeflag ) { tod = time( NULL ); strftime( tmp, sizeof( tmp ), tmp1, localtime( &tod ) ); v1 = tmp; } else if( expflag || lnumflag ) { i = setjmp( jmpaddr ); if( i != 0 ) { return( (vi_rc)i ); } StartExprParse( tmp1, jmpaddr ); val = GetConstExpr(); if( lnumflag ) { fcb *cfcb; line *cline; vi_rc rc; rc = CGimmeLinePtr( val, &cfcb, &cline ); v1 = cline->data; if( rc != ERR_NO_ERR ) { v1 = ""; } } else { v1 = ltoa( val, tmp1, EditVars.Radix ); } } else { v1 = tmp1; } VarAddStr( name, v1, vl ); return( ERR_NO_ERR ); } /* SrcAssign */