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+/*****
+ * util.h
+ * Andy Hammerlindl 2004/05/10
+ *
+ * A place for useful utility functions.
+ *****/
+
+#ifndef UTIL_H
+#define UTIL_H
+
+#include <sys/types.h>
+#include <iostream>
+#include <cstdlib>
+
+#include "common.h"
+
+#include <strings.h>
+
+// Duplicate a string.
+char *Strdup(string s);
+char *StrdupNoGC(string s);
+char *StrdupMalloc(string s);
+
+// Strip the directory from a filename.
+string stripDir(string name);
+
+// Strip the file from a filename, returning the directory.
+string stripFile(string name);
+
+// Strip the extension from a filename.
+string stripExt(string name, const string& suffix="");
+
+void writeDisabled();
+
+// Check if global writes are disabled and name contains a directory.
+void checkLocal(string name);
+
+// Construct a filename from the original, adding aux at the end, and
+// changing the suffix.
+string buildname(string filename, string suffix="", string aux="");
+
+// Construct an alternate filename for a temporary file in the current
+// directory.
+string auxname(string filename, string suffix="");
+
+// Return an argv array corresponding to the fields in command delimited
+// by spaces not within matching single quotes.
+char **args(const char *command, bool quiet=false);
+
+// Similar to the standard system call except allows interrupts and does
+// not invoke a shell.
+int System(const char *command, int quiet=0, bool wait=true,
+ const char *hint=NULL, const char *application="",
+ int *pid=NULL);
+int System(const ostringstream& command, int quiet=0, bool wait=true,
+ const char *hint=NULL, const char *application="",
+ int *pid=NULL);
+
+#if defined(__DECCXX_LIBCXX_RH70)
+extern "C" int kill(pid_t pid, Int sig) throw();
+extern "C" char *strsignal(Int sig);
+extern "C" double asinh(double x);
+extern "C" double acosh(double x);
+extern "C" double atanh(double x);
+extern "C" double cbrt(double x);
+extern "C" double erf(double x);
+extern "C" double erfc(double x);
+extern "C" double tgamma(double x);
+extern "C" double remainder(double x, double y);
+extern "C" double hypot(double x, double y) throw();
+extern "C" double jn(Int n, double x);
+extern "C" double yn(Int n, double x);
+#endif
+
+#if defined(__mips)
+extern "C" double tgamma(double x);
+#endif
+
+#if defined(__DECCXX_LIBCXX_RH70) || defined(__CYGWIN__)
+extern "C" int snprintf(char *str, size_t size, const char *format,...);
+extern "C" int fileno(FILE *);
+extern "C" char *strptime(const char *s, const char *format, struct tm *tm);
+extern "C" int setenv(const char *name, const char *value, int overwrite);
+#endif
+
+extern bool False;
+
+// Strip blank lines (which would break the bidirectional TeX pipe)
+string stripblanklines(const string& s);
+
+extern char *currentpath;
+
+const char *startPath();
+const char* setPath(const char *s, bool quiet=false);
+const char *changeDirectory(const char *s);
+extern char *startpath;
+
+void backslashToSlash(string& s);
+void spaceToUnderscore(string& s);
+string Getenv(const char *name, bool msdos);
+char *getPath(char *p=NULL);
+
+void execError(const char *command, const char *hint, const char *application);
+
+// This invokes a viewer to display the manual. Subsequent calls will only
+// pop-up a new viewer if the old one has been closed.
+void popupHelp();
+
+inline Int Abs(Int x) {
+#ifdef HAVE_LONG_LONG
+ return llabs(x);
+#else
+#ifdef HAVE_LONG
+ return labs(x);
+#else
+ return abs(x);
+#endif
+#endif
+}
+
+unsigned unsignedcast(Int n);
+int intcast(Int n);
+
+#endif