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Cleanup options.

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Improve usage message.
Improve output of options like --key-positions=1,2,$.
This commit is contained in:
Bruno Haible
2003-04-03 10:16:13 +00:00
parent 7dfd32b736
commit 68f03b3ea7
3 changed files with 152 additions and 121 deletions
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110
src/options.h
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@@ -32,79 +32,89 @@
#include <stdio.h>
#include "positions.h"
/* Enumeration of the possible boolean options. */
/* Enumeration of the possible boolean options. */
enum Option_Type
{
/* Enable debugging (prints diagnostics to stderr). */
DEBUG = 1 << 0,
/* Use the given key positions. */
POSITIONS = 1 << 1,
/* Use all characters in hash function. */
ALLCHARS = 1 << 2,
/* --- Input file interpretation --- */
/* Handle user-defined type structured keyword input. */
TYPE = 1 << 3,
TYPE = 1 << 0,
/* Randomly initialize the associated values table. */
RANDOM = 1 << 4,
/* Ignore case of ASCII characters. */
UPPERLOWER = 1 << 1,
/* Generate switch output to save space. */
SWITCH = 1 << 5,
/* --- Language for the output code --- */
/* Don't include keyword length in hash computations. */
NOLENGTH = 1 << 6,
/* Generate K&R C code: no prototypes, no const. */
KRC = 1 << 2,
/* Generate C code: no prototypes, but const (user can #define it away). */
C = 1 << 3,
/* Generate ISO/ANSI C code: prototypes and const, but no class. */
ANSIC = 1 << 4,
/* Generate C++ code: prototypes, const, class, inline, enum. */
CPLUSPLUS = 1 << 5,
/* --- Details in the output code --- */
/* Assume 7-bit, not 8-bit, characters. */
SEVENBIT = 1 << 6,
/* Generate a length table for string comparison. */
LENTABLE = 1 << 7,
/* Handle duplicate hash values for keywords. */
DUP = 1 << 8,
/* Generate strncmp rather than strcmp. */
COMP = 1 << 8,
/* Make the generated tables readonly (const). */
CONST = 1 << 9,
/* Use enum for constants. */
ENUM = 1 << 10,
/* Generate #include statements. */
INCLUDE = 1 << 11,
/* Make the keyword table a global variable. */
GLOBAL = 1 << 12,
/* Optimize for position-independent code. */
SHAREDLIB = 1 << 13,
/* Generate switch output to save space. */
SWITCH = 1 << 14,
/* Don't include user-defined type definition in output -- it's already
defined elsewhere. */
NOTYPE = 1 << 9,
NOTYPE = 1 << 15,
/* Generate strncmp rather than strcmp. */
COMP = 1 << 10,
/* --- Algorithm employed by gperf --- */
/* Make the keyword table a global variable. */
GLOBAL = 1 << 11,
/* Use the given key positions. */
POSITIONS = 1 << 16,
/* Make the generated tables readonly (const). */
CONST = 1 << 12,
/* Use all characters in hash function. */
ALLCHARS = 1 << 17,
/* Generate K&R C code: no prototypes, no const. */
KRC = 1 << 13,
/* Handle duplicate hash values for keywords. */
DUP = 1 << 18,
/* Generate C code: no prototypes, but const (user can #define it away). */
C = 1 << 14,
/* Don't include keyword length in hash computations. */
NOLENGTH = 1 << 19,
/* Generate ISO/ANSI C code: prototypes and const, but no class. */
ANSIC = 1 << 15,
/* Randomly initialize the associated values table. */
RANDOM = 1 << 20,
/* Generate C++ code: prototypes, const, class, inline, enum. */
CPLUSPLUS = 1 << 16,
/* --- Informative output --- */
/* Use enum for constants. */
ENUM = 1 << 17,
/* Generate #include statements. */
INCLUDE = 1 << 18,
/* Assume 7-bit, not 8-bit, characters. */
SEVENBIT = 1 << 19,
/* Optimize for position-independent code. */
SHAREDLIB = 1 << 20,
/* Ignore case of ASCII characters. */
UPPERLOWER = 1 << 21
/* Enable debugging (prints diagnostics to stderr). */
DEBUG = 1 << 21
};
/* Class manager for gperf program Options. */
/* Class manager for gperf program Options. */
class Options
{
@@ -193,10 +203,10 @@ public:
private:
/* Prints program usage to given stream. */
void short_usage (FILE * stream) const;
static void short_usage (FILE * stream);
/* Prints program usage to given stream. */
void long_usage (FILE * stream) const;
static void long_usage (FILE * stream);
/* Records count of command-line arguments. */
int _argument_count;