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Give clearer error messages for errors in the command line.

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This commit is contained in:
Stephen Heumann 2021-08-31 19:23:10 -05:00
parent b8c332deeb
commit ea461dba7b
1 changed files with 15 additions and 5 deletions
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20
Scanner.pas
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@ -240,6 +240,7 @@ type
var
dateStr: longStringPtr; {macro date string}
doingCommandLine: boolean; {are we processing the cc= command line?}
doingPPExpression: boolean; {are we processing a preprocessor expression?}
doingStringOrCharacter: boolean; {used to suppress comments in strings}
errors: array[1..maxErr] of errorType; {errors in this line}
@ -511,7 +512,7 @@ end; {PutBackToken}
procedure WriteLine;
{ Write the current character to the screen. }
{ Write the current line and any error messages to the screen. }
{ }
{ Global Variables: }
{ firstPtr - points to the first char in the line }
@ -525,7 +526,7 @@ var
begin {WriteLine}
if list or (numErr <> 0) then begin
if not wroteLine then begin
if not wroteLine and not doingCommandLine then begin
write(lineNumber:4, ' '); {write the line #}
cp := firstPtr; {write the characters in the line}
while (cp <> eofPtr) and (charKinds[ord(cp^)] <> ch_eol) do begin
@ -551,6 +552,8 @@ if list or (numErr <> 0) then begin
end; {for}
write('^ ');
end {if}
else if doingCommandLine then
write(' Error in command line: ')
else
write(' Error in column ', col:1, ' of line ', line:1, ': ');
case num of
@ -661,7 +664,7 @@ if list or (numErr <> 0) then begin
105: msg := @'lint: parameter list not prototyped';
106: msg := @'cannot take the address of a bit field';
107: msg := @'illegal use of forward declaration';
108: msg := @'unknown cc= option on command line';
108: msg := @'unknown cc= option';
109: msg := @'illegal math operation in a constant expression';
110: msg := @'lint: unknown pragma';
111: msg := @'the & operator cannot be applied to arrays';
@ -4042,6 +4045,7 @@ versionStrL^.str := versionStr;
cp := @infoStringGS.theString.theString;
tokenLine := 0;
tokenColumn := 0;
doingCommandLine := true;
NextCh;
repeat
while lch in [' ', chr(9)] do {skip leading blanks}
@ -4108,7 +4112,7 @@ repeat
mp^.tokens^.token := token;
end {if}
else if lch in ['i','I'] then begin
NextCh; {gat the pathname}
NextCh; {get the pathname}
if lch = '"' then begin
GetString;
LongToPString(workString, token.sval);
@ -4117,14 +4121,20 @@ repeat
else
Error(103);
end {if}
else {not -p, -i: flag the error}
else begin {not -d, -i: flag the error}
Error(108);
while not (lch in [chr(0),' ',chr(9)]) do
NextCh;
end; {else}
end {if}
else if lch <> chr(0) then begin
Error(108); {unknown option: flag the error}
lch := chr(0);
end; {else}
until lch = chr(0); {if more characters, loop}
if numErr <> 0 then
WriteLine;
doingCommandLine := false;
end; {InitScanner}