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+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+// $Id: strutl.cc,v 1.1 1998/07/07 04:17:16 jgg Exp $
+/* ######################################################################
+
+ String Util - Some usefull string functions.
+
+ strstrip - Remove whitespace from the front and end of a line.
+
+ This source is placed in the Public Domain, do with it what you will
+ It was originally written by Jason Gunthorpe <jgg@gpu.srv.ualberta.ca>
+
+ ##################################################################### */
+ /*}}}*/
+// Includes /*{{{*/
+#include <strutl.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdio.h>
+ /*}}}*/
+
+// strstrip - Remove white space from the front and back of a string /*{{{*/
+// ---------------------------------------------------------------------
+/* This is handy to use when parsing a file. It also removes \n's left
+ over from fgets and company */
+char *_strstrip(char *String)
+{
+ for (;*String != 0 && (*String == ' ' || *String == '\t'); String++);
+
+ if (*String == 0)
+ return String;
+
+ char *End = String + strlen(String) - 1;
+ for (;End != String - 1 && (*End == ' ' || *End == '\t' || *End == '\n' ||
+ *End == '\r'); End--);
+ End++;
+ *End = 0;
+ return String;
+};
+ /*}}}*/
+// strtabexpand - Converts tabs into 8 spaces /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+char *_strtabexpand(char *String,size_t Len)
+{
+ for (char *I = String; I != I + Len && *I != 0; I++)
+ {
+ if (*I != '\t')
+ continue;
+ if (I + 8 > String + Len)
+ {
+ *I = 0;
+ return String;
+ }
+
+ /* Assume the start of the string is 0 and find the next 8 char
+ division */
+ int Len;
+ if (String == I)
+ Len = 1;
+ else
+ Len = 8 - ((String - I) % 8);
+ Len -= 2;
+ if (Len <= 0)
+ {
+ *I = ' ';
+ continue;
+ }
+
+ memmove(I + Len,I + 1,strlen(I) + 1);
+ for (char *J = I; J + Len != I; *I = ' ', I++);
+ }
+ return String;
+}
+ /*}}}*/
+// ParseQuoteWord - Parse a single word out of a string /*{{{*/
+// ---------------------------------------------------------------------
+/* This grabs a single word, converts any % escaped characters to their
+ proper values and advances the pointer. Double quotes are understood
+ and striped out as well. */
+bool ParseQuoteWord(const char *&String,string &Res)
+{
+ // Skip leading whitespace
+ const char *C = String;
+ for (;*C != 0 && *C == ' '; C++);
+ if (*C == 0)
+ return false;
+
+ // Jump to the next word
+ for (;*C != 0 && *C != ' '; C++)
+ {
+ if (*C == '"')
+ {
+ for (C++;*C != 0 && *C != '"'; C++);
+ if (*C == 0)
+ return false;
+ }
+ }
+
+ // Now de-quote characters
+ char Buffer[1024];
+ char Tmp[3];
+ const char *Start = String;
+ char *I;
+ for (I = Buffer; I < Buffer + sizeof(Buffer) && Start != C; I++)
+ {
+ if (*Start == '%' && Start + 2 < C)
+ {
+ Tmp[0] = Start[1];
+ Tmp[1] = Start[2];
+ Tmp[3] = 0;
+ *I = (char)strtol(Tmp,0,16);
+ Start += 3;
+ continue;
+ }
+ if (*Start != '"')
+ *I = *Start;
+ else
+ I--;
+ Start++;
+ }
+ *I = 0;
+ Res = Buffer;
+
+ // Skip ending white space
+ for (;*C != 0 && *C == ' '; C++);
+ String = C;
+ return true;
+}
+ /*}}}*/
+// QuoteString - Convert a string into quoted from /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+string QuoteString(string Str,const char *Bad)
+{
+ string Res;
+ for (string::iterator I = Str.begin(); I != Str.end(); I++)
+ {
+ if (strchr(Bad,*I) != 0 || isprint(*I) == 0 ||
+ *I <= 0x20 || *I >= 0x7F)
+ {
+ char Buf[10];
+ sprintf(Buf,"%%%02x",(int)*I);
+ Res += Buf;
+ }
+ else
+ Res += *I;
+ }
+ return Res;
+}
+ /*}}}*/
+// SizeToStr - Convert a long into a human readable size /*{{{*/
+// ---------------------------------------------------------------------
+/* A max of 4 digits are shown before conversion to the next highest unit. The
+ max length of the string will be 5 chars unless the size is > 10
+ YottaBytes (E24) */
+string SizeToStr(double Size)
+{
+ char S[300];
+ double ASize;
+ if (Size >= 0)
+ ASize = Size;
+ else
+ ASize = -1*Size;
+
+ /* bytes, KiloBytes, MegaBytes, GigaBytes, TeraBytes, PetaBytes,
+ ExaBytes, ZettaBytes, YottaBytes */
+ char Ext[] = {'b','k','M','G','T','P','E','Z','Y'};
+ int I = 0;
+ while (I <= 8)
+ {
+ if (ASize < 100 && I != 0)
+ {
+ sprintf(S,"%.1f%c",ASize,Ext[I]);
+ break;
+ }
+
+ if (ASize < 10000)
+ {
+ sprintf(S,"%.0f%c",ASize,Ext[I]);
+ break;
+ }
+ ASize /= 1000.0;
+ I++;
+ }
+
+ return S;
+}
+ /*}}}*/
+// TimeToStr - Convert the time into a string /*{{{*/
+// ---------------------------------------------------------------------
+/* Converts a number of seconds to a hms format */
+string TimeToStr(unsigned long Sec)
+{
+ char S[300];
+
+ while (1)
+ {
+ if (Sec > 60*60*24)
+ {
+ sprintf(S,"%lid %lih%lim%lis",Sec/60/60/24,(Sec/60/60) % 24,(Sec/60) % 60,Sec % 60);
+ break;
+ }
+
+ if (Sec > 60*60)
+ {
+ sprintf(S,"%lih%lim%lis",Sec/60/60,(Sec/60) % 60,Sec % 60);
+ break;
+ }
+
+ if (Sec > 60)
+ {
+ sprintf(S,"%lim%lis",Sec/60,Sec % 60);
+ break;
+ }
+
+ sprintf(S,"%lis",Sec);
+ break;
+ }
+
+ return S;
+}
+ /*}}}*/
+// SubstVar - Substitute a string for another string /*{{{*/
+// ---------------------------------------------------------------------
+/* This replaces all occurances of Subst with Contents in Str. */
+string SubstVar(string Str,string Subst,string Contents)
+{
+ string::size_type Pos;
+ string::size_type OldPos = 0;
+ string Temp;
+
+ while (OldPos < Str.length() &&
+ (Pos = Str.find(Subst,OldPos)) != string::npos)
+ {
+ Temp += string(Str,OldPos,Pos) + Contents;
+ OldPos = Pos + Subst.length();
+ }
+
+ if (OldPos == 0)
+ return Str;
+
+ return Temp + string(Str,OldPos);
+}
+ /*}}}*/
+// Base64Encode - Base64 Encoding routine for short strings /*{{{*/
+// ---------------------------------------------------------------------
+/* This routine performs a base64 transformation on a string. It was ripped
+ from wget and then patched and bug fixed.
+
+ This spec can be found in rfc2045 */
+string Base64Encode(string S)
+{
+ // Conversion table.
+ static char tbl[64] = {'A','B','C','D','E','F','G','H',
+ 'I','J','K','L','M','N','O','P',
+ 'Q','R','S','T','U','V','W','X',
+ 'Y','Z','a','b','c','d','e','f',
+ 'g','h','i','j','k','l','m','n',
+ 'o','p','q','r','s','t','u','v',
+ 'w','x','y','z','0','1','2','3',
+ '4','5','6','7','8','9','+','/'};
+
+ // Pre-allocate some space
+ string Final;
+ Final.reserve((4*S.length() + 2)/3 + 2);
+
+ /* Transform the 3x8 bits to 4x6 bits, as required by
+ base64. */
+ for (string::const_iterator I = S.begin(); I < S.end(); I += 3)
+ {
+ char Bits[3] = {0,0,0};
+ Bits[0] = I[0];
+ if (I + 1 < S.end())
+ Bits[1] = I[1];
+ if (I + 2 < S.end())
+ Bits[2] = I[2];
+
+ Final += tbl[Bits[0] >> 2];
+ Final += tbl[((Bits[0] & 3) << 4) + (Bits[1] >> 4)];
+
+ if (I + 1 >= S.end())
+ break;
+
+ Final += tbl[((Bits[1] & 0xf) << 2) + (Bits[2] >> 6)];
+
+ if (I + 2 >= S.end())
+ break;
+
+ Final += tbl[Bits[2] & 0x3f];
+ }
+
+ /* Apply the padding elements, this tells how many bytes the remote
+ end should discard */
+ if (S.length() % 3 == 2)
+ Final += '=';
+ if (S.length() % 3 == 1)
+ Final += "==";
+
+ return Final;
+}
+ /*}}}*/
+// stringcmp - Arbitary string compare /*{{{*/
+// ---------------------------------------------------------------------
+/* This safely compares two non-null terminated strings of arbitary
+ length */
+int stringcmp(const char *A,const char *AEnd,const char *B,const char *BEnd)
+{
+ for (; A != AEnd && B != BEnd; A++, B++)
+ if (*A != *B)
+ break;
+
+ if (A == AEnd && B == BEnd)
+ return 0;
+ if (A == AEnd)
+ return 1;
+ if (B == BEnd)
+ return -1;
+ if (*A < *B)
+ return -1;
+ return 1;
+}
+ /*}}}*/
+// stringcasecmp - Arbitary case insensitive string compare /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+int stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd)
+{
+ for (; A != AEnd && B != BEnd; A++, B++)
+ if (toupper(*A) != toupper(*B))
+ break;
+
+ if (A == AEnd && B == BEnd)
+ return 0;
+ if (A == AEnd)
+ return 1;
+ if (B == BEnd)
+ return -1;
+ if (toupper(*A) < toupper(*B))
+ return -1;
+ return 1;
+}
+ /*}}}*/
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