diff options
| -rw-r--r-- | linetab.c | 2 | ||||
| -rw-r--r-- | renumbas.1 | 40 | ||||
| -rw-r--r-- | renumbas.c | 4 | ||||
| -rw-r--r-- | renumbas.rst | 42 |
4 files changed, 70 insertions, 18 deletions
@@ -88,7 +88,7 @@ void computed_msg(unsigned short lineno) { cmd = "???"; break; } - fprintf(stderr, "Computed %s at line %d\n", cmd, lineno); + fprintf(stderr, "%s: Warning: Computed %s at line %d.\n", self, cmd, lineno); } CALLBACK(got_var) { @@ -100,6 +100,39 @@ Print version number and exit. Verbose operation. When displaying a number in verbose mode, it will be prefixed with \fI$\fP if it\(aqs in hex, or no prefix for decimal. .UNINDENT +.SH DIAGNOSTICS +.INDENT 0.0 +.TP +.B Fatal: Program is code\-protected; unprotect it first. +Use \fBunprotbas\fP to remove the protection, if you get this error. +.TP +.B Fatal: New line number \fInum\fP would be >32767. +32767 is the highest line number BASIC allows. +Use a lower starting line (\fB\-s\fP) and/or increment (\fB\-i\fP). +.TP +.B Warning: Computed \fIcmd\fP at line \fInum\fP\&. +The line number for a \fIGOTO\fP, \fIGOSUB\fP, etc is normally adjusted to +whatever the line got renumbered to. This warning means that \fBrenumbas\fP +couldn\(aqt adjust the line number, because it\(aqs a computed value such as +\fIGOTO A+100\fP\&. You\(aqll have to fix this manually. \fInum\fP is the original +line number, not the renumbered one. +.TP +.B Warning: Line \fInum1\fP references nonexistent line \fInum2\fP\&. +Usually indicates a bug in the BASIC program. Example: \fIGOTO 100\fP, +but there is no line 100. \fInum1\fP is the original line number, not the +renumbered one. +.TP +.B Renumbering line \fInum1\fP as \fInum2\fP (\fInum3\fP refs). +Only seen when the \fB\-v\fP (verbose) option is used. Just an informational +message. +.UNINDENT +.SS Warning line numbers +.sp +Any warning that includes a line number (such as "Computed line number") will +have the original line number, \fInot\fP the renumbered one. This is because +the warnings are generated while scanning the program to find line number +references, which happens before the actual renumbering (so the new number +isn\(aqt known yet). .SH LIMITATIONS .sp A pathological case: @@ -120,13 +153,6 @@ the computation are constant. This is because neither Atari BASIC nor .sp This shouldn\(aqt be a real\-world problem; did \fIyou\fP ever write code like that in Atari BASIC? -.SS Warning line numbers -.sp -Any warning that includes a line number (such as "Computed line number") will -have the original line number, \fInot\fP the renumbered one. This is because -the warnings are generated while scanning the program to find line number -references, which happens before the actual renumbering (so the new number -isn\(aqt known yet). .SH EXIT STATUS .sp 0 for success, 1 for failure. @@ -75,12 +75,12 @@ CALLBACK(renumber_line) { if(lineno < limit || lineno == 32768) return; if(newno >= 32768) { - fprintf(stderr, "%s: Fatal: New line number %d out of range, renumber failed.\n", self, newno); + fprintf(stderr, "%s: Fatal: New line number %d would be >32767.\n", self, newno); exit(1); } if(verbose) - fprintf(stderr, "renumbering line %d as %d, %d refs\n", lineno, newno, refcounts[lineno]); + fprintf(stderr, "Renumbering line %d as %d (%d refs).\n", lineno, newno, refcounts[lineno]); int2fp(newno, fpnewno); for(i = 0; i < refcounts[lineno]; i++) diff --git a/renumbas.rst b/renumbas.rst index 7cef711..f71bf01 100644 --- a/renumbas.rst +++ b/renumbas.rst @@ -70,19 +70,31 @@ Renumber Options .. include:: genopts.rst -LIMITATIONS +DIAGNOSTICS =========== -A pathological case:: +Fatal: Program is code-protected; unprotect it first. + Use **unprotbas** to remove the protection, if you get this error. - 100 GOTO 200+0 +Fatal: New line number *num* would be >32767. + 32767 is the highest line number BASIC allows. + Use a lower starting line (**-s**) and/or increment (**-i**). -200+0 is considered a computed line number, even though the results of -the computation are constant. This is because neither Atari BASIC nor -**renumbas** does constant folding. +Warning: Computed *cmd* at line *num*. + The line number for a *GOTO*, *GOSUB*, etc is normally adjusted to + whatever the line got renumbered to. This warning means that **renumbas** + couldn't adjust the line number, because it's a computed value such as + *GOTO A+100*. You'll have to fix this manually. *num* is the original + line number, not the renumbered one. -This shouldn't be a real-world problem; did *you* ever write code like -that in Atari BASIC? +Warning: Line *num1* references nonexistent line *num2*. + Usually indicates a bug in the BASIC program. Example: *GOTO 100*, + but there is no line 100. *num1* is the original line number, not the + renumbered one. + +Renumbering line *num1* as *num2* (*num3* refs). + Only seen when the **-v** (verbose) option is used. Just an informational + message. Warning line numbers -------------------- @@ -92,6 +104,20 @@ the warnings are generated while scanning the program to find line number references, which happens before the actual renumbering (so the new number isn't known yet). +LIMITATIONS +=========== + +A pathological case:: + + 100 GOTO 200+0 + +200+0 is considered a computed line number, even though the results of +the computation are constant. This is because neither Atari BASIC nor +**renumbas** does constant folding. + +This shouldn't be a real-world problem; did *you* ever write code like +that in Atari BASIC? + EXIT STATUS =========== |