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Setup, takedown, mode set and output working. No input yet. (WIP)

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FossilOrigin-Name: dfea85be1fb927ea446c9d98bae42ba1197bdab098aa6d95aa512a37d07a1e52
This commit is contained in:
larrybr
2023-11-05 01:21:14 +00:00
parent a501791d59
commit 557297ae77
4 changed files with 307 additions and 28 deletions
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59
src/console_io.h
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@@ -24,19 +24,33 @@
** This code may change in tandem with other project code as needed.
*/
#ifndef INT_LINKAGE
# define INT_LINKAGE /* Linkage will be external to translation unit. */
# include <stdio.h>
# include <stdlib.h>
# include <limits.h>
# if defined(_WIN32) || defined(WIN32)
# undef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <io.h>
# include <fcntl.h>
# endif
#endif
/* Define enum for use with following function. */
enum ConsoleStdStreams {
CSC_NoConsole = 0,
CSC_InConsole = 1, CSC_OutConsole = 2, CSC_ErrConsole = 4,
CSC_AnyConsole = 0x7
};
typedef enum ConsoleStdConsStreams {
CSCS_NoConsole = 0,
CSCS_InConsole = 1, CSCS_OutConsole = 2, CSCS_ErrConsole = 4,
CSCS_AnyConsole = 0x7
} ConsoleStdConsStreams;
/*
** Classify the three standard I/O streams according to whether
** they are connected to a console attached to the process.
**
** Returns the bit-wise OR of CSC_{In,Out,Err}Console values,
** or CSC_NoConsole if none of the streams reaches a console.
** Returns the bit-wise OR of CSCS_{In,Out,Err}Console values,
** or CSCS_NoConsole if none of the streams reaches a console.
**
** This function should be called before any I/O is done with
** the given streams. As a side-effect, the given inputs are
@@ -47,8 +61,8 @@ enum ConsoleStdStreams {
** On some platforms, stream or console mode alteration (aka
** "Setup") may be made which is undone by consoleRestore().
*/
INT_LINKAGE ConsoleStdStreams
consoleClassifySetup( FILE *pfIn, FILE *pfOut,FILE *pfErr );
INT_LINKAGE ConsoleStdConsStreams
consoleClassifySetup( FILE *pfIn, FILE *pfOut, FILE *pfErr );
/*
** Undo any side-effects left by consoleClassifySetup(...).
@@ -64,10 +78,10 @@ INT_LINKAGE void SQLITE_CDECL consoleRestore( void );
** Render output like fprintf(). If the output is going to the
** console and translation from UTF-8 is necessary, perform
** the needed translation. Otherwise, write formatted output
** to the provided stream almost as-is, with possibly with
** newline translation as set by set{Binary,Text}Mode().
** to the provided stream almost as-is, possibly with newline
** translation as specified by set{Binary,Text}Mode().
*/
INT_LINKAGE int fprintfUtf8(FILE *, const char *zFmt, ...);
INT_LINKAGE int fprintfUtf8(FILE *pfO, const char *zFormat, ...);
/*
** Collect input like fgets(...) with special provisions for input
@@ -79,14 +93,23 @@ INT_LINKAGE int fgetsUtf8(char *buf, int ncMax, FILE *pfIn);
/*
** Set given stream for binary mode, where newline translation is
** not done, or to text mode where, for some platforms, newlines
** not done, or for text mode where, for some platforms, newlines
** are translated to the platform's conventional char sequence.
** If bFlush true, flush the stream.
**
** An additional side-effect is that if the stream is one passed
** to consoleClassifySetup() as an output, it is flushed.
** to consoleClassifySetup() as an output, it is flushed first.
**
** Note that binary/text mode has no effect on console output
** translation. Newline chars start a new line on all platforms.
*/
INT_LINKAGE void setBinaryMode(File *);
INT_LINKAGE void setTextMode(File *);
INT_LINKAGE void setBinaryMode(FILE *, short bFlush);
INT_LINKAGE void setTextMode(FILE *, short bFlush);
typedef struct Prompts {
int numPrompts;
const char **azPrompts;
} Prompts;
/*
** Macros for use of a line editor.
@@ -128,8 +151,8 @@ INT_LINKAGE void setTextMode(File *);
** library to interactively collect line edited input.
*/
INT_LINKAGE char *
shellGetLine(File *pfIn, char *zBufPrior, int nLen,
short isContinuation, const char *azPrompt[2]);
shellGetLine(FILE *pfIn, char *zBufPrior, int nLen,
short isContinuation, Prompts azPrompt);
/*
** TBD: Define an interface for application(s) to generate