common: add some new callbacks to ivy_line_source
these callbacks will be used to implement diagnostic messages.
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@@ -5,12 +5,21 @@
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#include <stddef.h>
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struct ivy_line_source {
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enum ivy_status (*s_get_name)(
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struct ivy_line_source *, char *, size_t, size_t *);
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enum ivy_status (*s_readline)(
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struct ivy_line_source *, char *, size_t, size_t *, const char *);
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enum ivy_status (*s_get_row)(
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struct ivy_line_source *, size_t, char *, size_t, size_t *);
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};
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IVY_API enum ivy_status ivy_line_source_get_name(
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struct ivy_line_source *src, char *buf, size_t count, size_t *nr_read);
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IVY_API enum ivy_status ivy_line_source_readline(
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struct ivy_line_source *src, char *buf, size_t count, size_t *nr_read,
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const char *prompt);
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IVY_API enum ivy_status ivy_line_source_get_row(
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struct ivy_line_source *src, size_t row, char *buf, size_t count,
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size_t *nr_read);
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#endif
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@@ -1,5 +1,15 @@
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#include <ivy/line-source.h>
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enum ivy_status ivy_line_source_get_name(
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struct ivy_line_source *src, char *buf, size_t count, size_t *nr_read)
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{
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if (src->s_get_name) {
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return src->s_get_name(src, buf, count, nr_read);
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}
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return IVY_ERR_NOT_SUPPORTED;
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}
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enum ivy_status ivy_line_source_readline(
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struct ivy_line_source *src, char *buf, size_t count, size_t *nr_read,
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const char *prompt)
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@@ -10,3 +20,14 @@ enum ivy_status ivy_line_source_readline(
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return IVY_ERR_NOT_SUPPORTED;
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}
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enum ivy_status ivy_line_source_get_row(
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struct ivy_line_source *src, size_t row, char *buf, size_t count,
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size_t *nr_read)
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{
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if (src->s_get_row) {
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return src->s_get_row(src, row, buf, count, nr_read);
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}
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return IVY_ERR_NOT_SUPPORTED;
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}
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