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textclip.library
Posted: Mon Dec 22, 2014 9:27 am
by JosDuchIt
textclip.library/DisposeClipVector
textclip.library/DisposeClipVector textclip.library/DisposeClipVector
ReadClipVector -- read a string vector from the clipboard device
SYNOPSIS
ReadClipVector( vecptr, sizeptr )
LONG ReadClipVector( STRPTR *, ULONG *);
RESULT
A boolean success/failure indicator. In case of failure, the
size and the pointer will be nulled out for you.
I guess the result (LONG) is the vector's dimension? & not as described a boolean?
Re: textclip.library
Posted: Mon Dec 22, 2014 9:46 am
by salass00
JosDuchIt wrote:textclip.library/DisposeClipVector
textclip.library/DisposeClipVector textclip.library/DisposeClipVector
ReadClipVector -- read a string vector from the clipboard device
SYNOPSIS
ReadClipVector( vecptr, sizeptr )
LONG ReadClipVector( STRPTR *, ULONG *);
RESULT
A boolean success/failure indicator. In case of failure, the
size and the pointer will be nulled out for you.
I guess the result (LONG) is the vector's dimension? & not as described a boolean?
No, the result is just a boolean with non-zero for success and zero for failure. The size is written to the ULONG variable, the pointer of which you have provided as the second parameter to ReadClipVector().
Re: textclip.library
Posted: Mon Dec 22, 2014 5:44 pm
by JosDuchIt
I am stuck with using textclip.library to make a list from a multiline copy to clipboard fpr ListBrowser
(using clips:o as input file with LyleHaze's code , works ok, just a FORM line at the topMy wndow opens if nothing is in the clipboard too.
edit: after replacing the erroneous while check, the program freezes now after entering the loop with a muli line clip
and does not enter any more when the clip is empty
struct List *make_listbrowser_clip (BOOL yes )
{
STRPTR clipstring[TOTAL_LINES]; // =
STRPTR * clipstrings;
clipstrings = &clipstring[0];
ULONG* clipsizes;
ULONG clipsize[TOTAL_LINES];
clipsizes = &clipsize[0];
struct List *list=NULL;
LONG len, i = 0;
Printf("clip start %ld\n",i); ///seen
ReadClipVector(clipstrings, clipsizes);///ITextClip->
Printf("clip start %s\n",clipstring); /// seen with all the lines
if ((list = AllocVecTags (sizeof(struct List), AVT_ClearWithValue, 0, TAG_END)))
{
NewList (list);
while (clipstring[0] != '\0' ) ; /// no problem when nothing in, clipboard
{
Printf("clip loop %s\n",clipstring);
struct Node *node;
if (node = AllocListBrowserNode (1,LBNCA_Text,clipstring,TAG_END))
{
Printf("clip loop Allocdone %s\n",clipstring);
AddTail (list,node);
}
else
{
free_listbrowser_list (list);
return (NULL);
}
Printf("clip loop i %ld\n",i);
i++;
}
if (!(list->lh_Head->ln_Succ))
{
free_listbrowser_list (list);
return (NULL);
}
}
return (list);
}
Re: textclip.library
Posted: Mon Dec 22, 2014 6:41 pm
by salass00
Your loop doesn't work because in your arrays only the first element is initialised by ReadClipVector() so the contents of all others is undefined.
If I understand you correctly then a function like this should do what you want:
Code: Select all
struct List *ClipToListBrowserList(void) {
STRPTR clipstring;
uint32 clipsize;
struct List *list;
STRPTR line, state;
struct Node *node;
if (!ReadClipVector(&clipstring, &clipsize))
return NULL;
list = AllocSysObject(ASOT_LIST, NULL);
if (list == NULL) {
DisposeClipVector(clipstring);
return NULL;
}
line = strtok_r(clipstring, "\n", &state);
while (line != NULL) {
node = AllocListBrowserNode(1,
LBNCA_CopyText, TRUE,
LBNCA_Text, line,
TAG_END);
if (node == NULL) {
DisposeClipVector(clipstring);
FreeListBrowserList(list);
FreeSysObject(ASOT_LIST, list);
return NULL;
}
AddTail(list, node);
line = strtok_r(NULL, "\n", &state);
}
DisposeClipVector(clipstring);
if (IsListEmpty(list)) {
FreeSysObject(ASOT_LIST, list);
return NULL;
}
return list;
}
Note that in this code I have changed the list so that it's allocated with AllocSysObject rather than AllocVecTags so this means that it has to be freed with FreeSysObject(ASOT_LIST, list) rather than FreeVec(list).
strtok_r() a standard clib function is used to split the string based on newline characters (you will need to include <string.h> for this).
Re: textclip.library
Posted: Mon Dec 22, 2014 7:51 pm
by JosDuchIt
@salass00
Thanks for the code.
I learned a number of things from it.
Do you agree however that using strtok_r() is a workaround that one wouldn't have to use?
ReadClipVector() delivers all the strings together(with their line feed )
Using strtok_r() eats empty lines too.
I can use LyleHaze's code (file to Listbrowser list) pointing a clips:0 which probably respects the empty lines,
Re: textclip.library
Posted: Mon Dec 22, 2014 9:47 pm
by salass00
JosDuchIt wrote:
Do you agree however that using strtok_r() is a workaround that one wouldn't have to use?
ReadClipVector() delivers all the strings together(with their line feed )
No, not really.
The current form is much more general and useful if you want to insert the text into a texteditor.gadget for example and if you need each line as a separate NUL-terminated string as you do it's not very hard to do the necessary conversion.
Using strtok_r() eats empty lines too.
I rarely ever find a use for this function so I don't remember its quirks but if you need to keep the empty lines you should be able to use this replacement strtok_r() function:
Code: Select all
char *my_strtok_r(char *s, const char *sep, char **state) {
char *tok;
char c;
if (s == NULL && (s = *state) == NULL)
return NULL;
tok = s;
while ((c = *s) != '\0' && strchr(sep, c) == NULL) s++;
if (c != '\0')
*s++ = '\0';
else
s = NULL;
*state = s;
return tok;
}
Re: textclip.library
Posted: Tue Dec 23, 2014 9:25 am
by JosDuchIt
@salas00
OK & Thanks for my_strtok_r