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|
%% options
copyright owner = Dirk Krause
copyright year = 2016-xxxx
license = bsd
%% header
/** @file dk4papea.h Paper sizes for applications.
*/
#ifndef DK4PAPER_H_INCLUDED
#include "dk4paper.h"
#endif
#ifndef DK4APP_H_INCLUDED
#include "dk4app.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Get paper sizes collection.
If the function returns a valid pointer, use
dk4papersize_coll_close() to release the paper size collection when
done with it.
@param app Application structure.
@return Valid pointer on success, NULL on error.
*/
dk4_paper_size_collection_t *
dk4app_get_paper_sizes(dk4_app_t *app);
/** Get one paper size.
On success, call dk4mem_free() to release the paper size when done with it.
The paper size is returned with values only, empty name.
@param app Application structure.
@param psname Name of paper size to search for.
@return Valid pointer to paper size on success, NULL on error.
*/
dk4_paper_size_t *
dk4app_get_paper_size(dk4_app_t *app, const dkChar *psname);
#ifdef __cplusplus
}
#endif
/* vim: set ai sw=4 ts=4 : */
%% module
#include "dk4papea.h"
#include "dk4strd.h"
#include "dk4mem.h"
#include "dk4maiddbl.h"
#include "dk4tspdk.h"
#include "dk4fs.h"
#include "dk4mpl.h"
#include "dk4strm.h"
#include "dk4strmr.h"
$!trace-include
/** Object passed as pointer to the reader function
*/
typedef struct {
dk4_paper_size_collection_t *pscptr;
dk4_app_t *app;
} reader_obj_t;
/** Names of files to read.
*/
static const dkChar * const conf_file_names[] = {
dkT("dk4paper.conf"),
#if DK4_HAVE_COMPATDKTOOLS3
dkT("dk3paper.conf"),
#endif
NULL
};
/** Process one input line.
@param obj Reader object.
@param line Current line to process.
@param lineno Line number.
@param erp Error report, may be NULL.
@return
DK4_TSP_RES_OK if processing succeeded,
DK4_TSP_RES_ERROR on errors (can continue),
DK4_TSP_RES_FATAL on fatal errors (can not continue).
*/
static
int
dk4papersize_line_handler(
void *obj,
dkChar *line,
dk4_um_t lineno,
dk4_er_t *erp
)
{
double val[6]; /* w, h, i, o, t, b */
dkChar *tok[16]; /* tokens from the value side */
dk4_paper_size_collection_t *pscptr; /* collection of paper sizes */
dk4_paper_size_t *ps; /* paper size to modify */
dkChar *pls; /* line start (size name) */
dkChar *pval; /* value side of line */
const dkChar *ep; /* end pointer after double value */
dk4_app_t *app; /* application structure */
reader_obj_t *rdo; /* reader object */
size_t ntok; /* number of tokens in value side */
size_t i; /* index for traversal */
int back = DK4_TSP_RES_OK;
$? "+ dk4papersize_line_handler \"%!ds\"", line
/* Retrieve components from obj pointer
*/
rdo = (reader_obj_t *)obj;
pscptr = rdo->pscptr;
app = rdo->app;
dk4app_set_log_source_line(app, lineno);
/*
Find start of line
*/
pls = dk4str_start(line, NULL);
if (NULL == pls) { $? ". empty line"
goto finished;
}
/*
Ignore comment lines
*/
if (dkT('#') == *pls) { $? ". comment line"
goto finished;
}
/*
Line must by key = values
*/
pval = dk4str_chr(pls, dkT('='));
if (NULL == pval) { $? "! no = found"
/* ERROR: Syntax */
dk4app_log_base1(app, DK4_LL_WARNING, 159);
back = DK4_TSP_RES_ERROR;
goto finished;
} $? ". found ="
*(pval++) = dkT('\0');
dk4str_rtwh(pls, NULL);
if (0 == dk4str_len(pls)) { $? "! 0 name length"
/* ERROR: Syntax */
dk4app_log_base1(app, DK4_LL_WARNING, 159);
back = DK4_TSP_RES_ERROR;
goto finished;
} $? ". name length ok"
pval = dk4str_start(pval, NULL);
if (NULL == pval) { $? "! pval"
/* ERROR: Syntax */
dk4app_log_base1(app, DK4_LL_WARNING, 159);
back = DK4_TSP_RES_ERROR;
goto finished;
} $? ". pval"
/*
Tokenize string
*/
ntok = dk4str_tokenize(tok, 16, pval, NULL, NULL);
if ((2 > ntok) || (6 < ntok)) { $? "! wrong number of tokens"
/* ERROR: Syntax */
dk4app_log_base1(app, DK4_LL_WARNING, 159);
back = DK4_TSP_RES_ERROR;
goto finished;
} $? ". number of tokens ok"
/*
Initialize values
*/
for (i = 0; i < 6; i++) { val[i] = 0.0; }
/*
Process tokens to values
*/
for (i = 0; i < ntok; i++) {
ep = NULL; $? ". token=\"%!ds\"", tok[i]
if (0 == dk4ma_input_dk_double(&(val[i]), tok[i], &ep, 1, NULL)) {
/* ERROR: Syntax */
dk4app_log_base1(app, DK4_LL_WARNING, 159);
back = DK4_TSP_RES_ERROR; $? "! token=\"%!ds\"", tok[i]
goto finished;
}
}
/*
Modify existing or create new papersize
*/
ps = (dk4_paper_size_t *)dk4sto_it_find_like(pscptr->i_ps, pls, 1);
if (NULL == ps) { $? ". must create new paper size"
ps = dk4papersize_new(pls, NULL);
if (NULL != ps) { $? ". paper size created"
if (0 == dk4sto_add(pscptr->s_ps, ps, NULL)) {
dk4papersize_delete(ps); $? "! failed to add"
ps = NULL;
}
}
#if TRACE_DEBUG
else { $? "! memory"
}
#endif
}
if (NULL == ps) { $? "! no paper size to set up"
/* ERROR: Memory */
dk4app_log_base1(app, DK4_LL_WARNING, 90);
back = DK4_TSP_RES_ERROR;
goto finished;
} $? ". paper size available"
ps->w = val[0]; ps->h = val[1]; ps->i = val[2];
ps->o = val[3]; ps->t = val[4]; ps->b = val[5];
finished:
$? "- dk4papersize_line_handler %d", back
return back;
}
/** Apply contents of one configuration file to paper size collection.
@param pscptr Paper size collection to modify.
@param fn File name.
@param app Application structure.
*/
static
void
dk4app_apply_paper_size_file(
dk4_paper_size_collection_t *pscptr,
const dkChar *fn,
dk4_app_t *app
)
{
char ib[4096]; /* Byte buffer */
dkChar il[1024]; /* Text line buffer */
dk4_tspdk_t tsp; /* Text stream processor */
dk4_er_t er; /* Error report */
reader_obj_t rdo; /* Passed to text proc */
const dkChar *oldsourcefile = NULL; /* Saved source file name */
dk4_stream_t *istrm = NULL; /* Input stream */
dk4_um_t oldsourceline = (dk4_um_t)0UL; /* Saved source line */
size_t rb = 0; /* Number of bytes read */
int cc = 1; /* Flag: Can continue */
int res = 0; /* Operation result */
$? "+ dk4app_apply_paper_size_file \"%!ds\"", fn
/* Save current file name and file line for logging
*/
oldsourcefile = dk4app_get_log_source_file(app);
oldsourceline = dk4app_get_log_source_line(app);
/*
We will process the specified input file, so set file name for logging
*/
dk4app_set_log_source_file(app, fn);
dk4app_set_log_source_line(app, (dk4_um_t)0UL);
/*
Open stream for read access
*/
dk4error_init(&er);
istrm = dk4stream_open_file_reader(fn, &er);
if (NULL == istrm) { $? "! failed to open file"
goto finished;
} $? ". file opened"
/*
Set up reader object
*/
rdo.pscptr = pscptr;
rdo.app = app;
/*
Set up text processor
*/
res = dk4tspdk_setup_line(
&tsp, &rdo, dk4papersize_line_handler, il, DK4_SIZEOF(il,dkChar),
app->encoding, app->enc_in_file, &er
);
if (0 == res) { $? "! failed to init tsp"
goto finished;
} $? ". tsp initialized"
/*
Read and process contents from stream
*/
res = DK4_TSP_RES_OK;
do { $? ". start of loop"
cc = 0;
rb = sizeof(ib);
if (0 != dk4stream_read(ib, &rb, istrm, &er)) { $? ". read ok"
if (0 < rb) { $? ". bytes found"
res = dk4tspdk_add_bytes(&tsp, (const unsigned char *)ib, rb);
if (DK4_TSP_RES_FATAL != res) { $? ". byte processing ok"
cc = 1;
}
}
#if TRACE_DEBUG
else { $? ". 0 read"
}
#endif
}
#if TRACE_DEBUG
else { $? "! read failed"
}
#endif
$? ". end of loop cc=%d", cc
} while (1 == cc);
if (DK4_TSP_RES_FATAL != res) {
dk4tspdk_finish(&tsp);
}
finished:
/*
Close input stream
*/
if (NULL != istrm) { dk4stream_close(istrm, NULL); }
/*
Restore file name and file line for logging
*/
dk4app_set_log_source_file(app, oldsourcefile);
dk4app_set_log_source_line(app, oldsourceline);
$? "- dk4app_apply_paper_size_file"
}
dk4_paper_size_collection_t *
dk4app_get_paper_sizes(dk4_app_t *app)
{
dkChar fnb[DK4_MAX_PATH]; /* File name buffer */
dk4_er_t er; /* Error result */
const dkChar *msg[3];
dk4_paper_size_collection_t *back = NULL; /* Function result */
const size_t szfnb = DK4_SIZEOF(fnb,dkChar); /* Size */
int res; /* Operation result */
int i; /* Index for traversal */
$? "+ dk4app_get_paper_sizes"
/* Check app pointer
*/
if (NULL == app) { $? "! invalid app pointer"
goto finished;
}
/* Allocate new size collection with default sizes
*/
back = dk4papersize_coll_open(NULL);
if (NULL == back) { $? "! memory"
/* ERROR: Memory */
dk4app_log_base1(app, DK4_LL_WARNING, 90);
goto finished;
}
/* Find all configuration files and apply contents.
*/
if (0 != dk4app_log_do(app, DK4_LL_DEBUG)) {
if ((NULL != app->msg_debug) && (36 < app->sz_msg_debug)) {
msg[0] = (app->msg_debug)[36];
dk4app_log_msg(app, DK4_LL_DEBUG, msg, 1);
}
}
for (i = 0; i <= DK4_FS_CONF_MAX; i++) { $? ". pass %u", (unsigned)i
#if DK4_HAVE_COMPATDKTOOLS3
#if VERSION_BEFORE_2017_03_09
dk4error_init(&er);
res = dk4fs_config_compat_one(
fnb, szfnb, conf_file_names[1],
app->dir_share, app->dir_etc, app->user_home,
app->prog_name, app->group_name, i, 1, 1, &er
);
if (0 != res) { $? ". dk3paper.conf"
dk4app_apply_paper_size_file(back, fnb, app);
}
#else
dk4error_init(&er);
res = dk4fs_config_construct_compat_one(
fnb, szfnb, conf_file_names[1],
app->dir_share, app->dir_etc, app->user_home,
app->prog_name, app->group_name, i, 1, &er
);
if (0 != res) {
res = dk4fs_attempt_file_name(fnb, szfnb, 1, &er);
if (0 != res) {
if (0 != dk4app_log_do(app, DK4_LL_DEBUG)) {
if ((NULL != app->msg_debug) && (30 < app->sz_msg_debug)) {
msg[0] = (app->msg_debug)[30];
msg[1] = fnb;
dk4app_log_msg(app, DK4_LL_DEBUG, msg, 2);
}
}
dk4app_apply_paper_size_file(back, fnb, app);
} else {
if (0 != dk4app_log_do(app, DK4_LL_DEBUG)) {
if ((NULL != app->msg_debug) && (31 < app->sz_msg_debug)) {
msg[0] = (app->msg_debug)[31];
msg[1] = fnb;
dk4app_log_msg(app, DK4_LL_DEBUG, msg, 2);
}
}
}
}
#endif
#endif
#if VERSION_BEFORE_2017_03_09
dk4error_init(&er);
res = dk4fs_config_one(
fnb, szfnb, conf_file_names[0],
app->dir_share, app->dir_etc, app->user_home,
app->prog_name, app->group_name, i, 1, &er
);
if (0 != res) { $? ". dk4paper.conf"
dk4app_apply_paper_size_file(back, fnb, app);
}
#else
dk4error_init(&er);
res = dk4fs_config_construct_compat_one(
fnb, szfnb, conf_file_names[0],
app->dir_share, app->dir_etc, app->user_home,
app->prog_name, app->group_name, i, 0, &er
);
if (0 != res) {
res = dk4fs_attempt_file_name(fnb, szfnb, 1, &er);
if (0 != res) {
if (0 != dk4app_log_do(app, DK4_LL_DEBUG)) {
if ((NULL != app->msg_debug) && (30 < app->sz_msg_debug)) {
msg[0] = (app->msg_debug)[30];
msg[1] = fnb;
dk4app_log_msg(app, DK4_LL_DEBUG, msg, 2);
}
}
dk4app_apply_paper_size_file(back, fnb, app);
} else {
if (0 != dk4app_log_do(app, DK4_LL_DEBUG)) {
if ((NULL != app->msg_debug) && (31 < app->sz_msg_debug)) {
msg[0] = (app->msg_debug)[31];
msg[1] = fnb;
dk4app_log_msg(app, DK4_LL_DEBUG, msg, 2);
}
}
}
} else {
}
#endif
}
finished:
$? "- dk4app_get_paper_sizes %d", TR_IPTR(back)
return back;
}
dk4_paper_size_t *
dk4app_get_paper_size(dk4_app_t *app, const dkChar *psname)
{
dk4_paper_size_collection_t *coll = NULL; /* Paper sizes collection */
dk4_paper_size_t *back = NULL; /* Function result */
dk4_paper_size_t *tmp = NULL; /* Temporary found paper size */
$? "+ dk4app_get_paper_size \"%!ds\"", TR_STR(psname)
/*
Check arguments
*/
if ((NULL == app) || (NULL == psname)) {
goto finished;
}
/*
Retrieve paper size collection
*/
coll = dk4app_get_paper_sizes(app);
if (NULL == coll) {
goto finished;
}
tmp = (dk4_paper_size_t *)dk4sto_it_find_like(coll->i_ps, psname, 1);
if (NULL == tmp) {
goto finished;
}
back = dk4mem_new(dk4_paper_size_t,1,NULL);
if (NULL == back) {
goto finished;
}
back->name = NULL;
back->w = tmp->w;
back->h = tmp->h;
back->i = tmp->i;
back->o = tmp->o;
back->t = tmp->t;
back->b = tmp->b;
finished:
if (NULL != coll) {
dk4papersize_coll_close(coll);
}
$? "- dk4app_get_paper_size %d", TR_IPTR(back)
return back;
}
/* vim: set ai sw=4 ts=4 : */
|