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hmmlconv.c: Deep optimisation

This commit is contained in:
Matt Mascarenhas 2017-05-01 10:44:22 +01:00
parent 39f9e30117
commit edf3975646
1 changed files with 34 additions and 20 deletions
hmmlconv
hmmlconv.c

54
hmmlconv/hmmlconv.c
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@ -12,6 +12,8 @@ exit
#include <sys/types.h> // open, mkdir #include <sys/types.h> // open, mkdir
#include <sys/stat.h> // open, mkdir #include <sys/stat.h> // open, mkdir
#define LError(Format, ...) do { fprintf(stderr, " l.%d: " Format, LineNumber, ##__VA_ARGS__); } while(0)
typedef struct typedef struct
{ {
char *Site; char *Site;
@ -114,6 +116,11 @@ char *InPlaceUnescape(char *In)
*Out++ = *In++; *Out++ = *In++;
} }
if(*In != '"')
{
return NULL;
}
*Out = 0; *Out = 0;
return Result; return Result;
} }
@ -142,6 +149,13 @@ Resource *LookupResource(char *Tag, char *Line)
return Res; return Res;
} }
enum
{
TC_NAN = 1,
TC_COLONS = 2,
TC_OUT_OF_RANGE = 3
};
int int
ValidateTimecode(char *Timecode) ValidateTimecode(char *Timecode)
{ {
@ -149,12 +163,12 @@ ValidateTimecode(char *Timecode)
int Colons = 0; int Colons = 0;
while(*Timecode) while(*Timecode)
{ {
if(!(*Timecode >= '0' && *Timecode <= '9') && *Timecode != ':') { return 1; } if(!(*Timecode >= '0' && *Timecode <= '9') && *Timecode != ':') { return TC_NAN; }
if(*Timecode == ':') if(*Timecode == ':')
{ {
++Colons; ++Colons;
if(Colons > 2) { return 2; } if(Colons > 2) { return TC_COLONS; }
for(int i = 0; i < Colons; ++i) for(int i = 0; i < Colons; ++i)
{ {
HMS[Colons - i] = HMS[Colons - (i + 1)]; HMS[Colons - i] = HMS[Colons - (i + 1)];
@ -169,7 +183,7 @@ ValidateTimecode(char *Timecode)
++Timecode; ++Timecode;
} }
if(HMS[0] > 59 || HMS[1] > 59 || Timecode[-1] == ':') { return 3; } if(HMS[0] > 59 || HMS[1] > 59 || Timecode[-1] == ':') { return TC_OUT_OF_RANGE; }
return 0; return 0;
} }
@ -177,7 +191,7 @@ ValidateTimecode(char *Timecode)
void ProcessAnnotation(char *Line, int LineNumber, FILE *OutFile) void ProcessAnnotation(char *Line, int LineNumber, FILE *OutFile)
{ {
SkipWhitespace(&Line); SkipWhitespace(&Line);
if(*Line != '"') { fprintf(stderr, " l.%d: Syntax error, line must begin with a \": %.*s...\n", LineNumber, 8, Line); exit(1); } if(*Line != '"') { LError("Syntax error, line must begin with a \": %.*s...\n", 8, Line); exit(1); }
fputc('[', OutFile); fputc('[', OutFile);
char Timecode[9]; char Timecode[9];
@ -191,29 +205,29 @@ void ProcessAnnotation(char *Line, int LineNumber, FILE *OutFile)
switch(ValidateTimecode(Timecode)) switch(ValidateTimecode(Timecode))
{ {
case 0: break; case 0: break;
case 1: fprintf(stderr, " l.%d: Invalid timecode, not a number: %s\n", LineNumber, Timecode); exit(1); case TC_NAN: LError("Invalid timecode, not a number: %s\n", Timecode); exit(1);
case 2: fprintf(stderr, " l.%d: Invalid timecode, too many colons: %s\n", LineNumber, Timecode); exit(1); case TC_COLONS: LError("Invalid timecode, too many colons: %s\n", Timecode); exit(1);
case 3: fprintf(stderr, " l.%d: Invalid timecode, not 0-59: %s\n", LineNumber, Timecode); exit(1); case TC_OUT_OF_RANGE: LError("Invalid timecode, not 0-59: %s\n", Timecode); exit(1);
} }
fputs(Timecode, OutFile); fputs(Timecode, OutFile);
fputc(']', OutFile); fputc(']', OutFile);
if(*++Line != ':') { fprintf(stderr, " l.%d: Syntax error, missing : before: %.*s...\n", LineNumber, 8, Line); exit(1); } if(*++Line != ':') { LError("Syntax error, missing : before: %.*s...\n", 8, Line); exit(1); }
if(*++Line != ' ') { fprintf(stderr, " l.%d: Syntax error, missing space before: %.*s...\n", LineNumber, 8, Line); exit(1); } if(*++Line != ' ') { LError("Syntax error, missing space before: %.*s...\n", 8, Line); exit(1); }
if(*++Line != '"') { fprintf(stderr, " l.%d: Syntax error, missing \" before: %.*s...\n", LineNumber, 8, Line); exit(1); } if(*++Line != '"') { LError("Syntax error, missing \" before: %.*s...\n", 8, Line); exit(1); }
char *LinePtr = Line; char *LinePtr = Line;
while(*LinePtr) { ++LinePtr; } if(!(Line = InPlaceUnescape(Line)))
if(LinePtr[-1] != '"') { fprintf(stderr, " l.%d: Syntax error, missing closing \": %.*s\n", LineNumber, LinePtr-Line, Line); exit(1); } {
LError("Syntax error, missing closing \": %.*s\n", Line-LinePtr, LinePtr); exit(1);
Line = InPlaceUnescape(Line); }
// convert author // convert author
if(Line[0] == '@') if(Line[0] == '@')
{ {
char *P = strchr(Line, ' '); char *P = strchr(Line, ' ');
if(!P) { fprintf(stderr, " l.%d: Invalid annotation, cannot contain only a member: %.*s...\n", LineNumber, 8, Line); exit(1); } if(!P) { LError("Invalid annotation, cannot contain only a member: %.*s...\n", 8, Line); exit(1); }
if(P[-1] == ':') if(P[-1] == ':')
{ {
@ -227,7 +241,7 @@ void ProcessAnnotation(char *Line, int LineNumber, FILE *OutFile)
char RefBuf[256]; char RefBuf[256];
char *RunStart = Line; char *RunStart = Line;
char *FirstSpace = NULL; char *FirstSpace = NULL;
int ConsiderQuote = 0; int ConsiderAuthored = 0;
fputc('[', OutFile); fputc('[', OutFile);
@ -260,7 +274,7 @@ void ProcessAnnotation(char *Line, int LineNumber, FILE *OutFile)
} }
else else
{ {
fprintf(stderr, " l.%d: WARNING: can't find resource: %s :(\n", LineNumber, RefBuf); LError("WARNING: can't find resource: %s :(\n", RefBuf);
} }
} }
@ -279,16 +293,16 @@ void ProcessAnnotation(char *Line, int LineNumber, FILE *OutFile)
if(!FirstSpace) if(!FirstSpace)
{ {
FirstSpace = LinePtr; FirstSpace = LinePtr;
ConsiderQuote = 1; ConsiderAuthored = 1;
} }
else else
{ {
ConsiderQuote = 0; ConsiderAuthored = 0;
} }
} }
// Q: // Q:
else if(LinePtr[0] == 'Q' && LinePtr[1] == ':' && ConsiderQuote) else if(LinePtr[0] == 'Q' && LinePtr[1] == ':' && ConsiderAuthored)
{ {
LinePtr += 2; LinePtr += 2;
RunStart = LinePtr+1; RunStart = LinePtr+1;