diff options
| -rw-r--r-- | docs/manual-mutool-show.html | 2 | ||||
| -rw-r--r-- | source/tools/pdfshow.c | 130 |
2 files changed, 104 insertions, 28 deletions
diff --git a/docs/manual-mutool-show.html b/docs/manual-mutool-show.html index 0805d108..3050a616 100644 --- a/docs/manual-mutool-show.html +++ b/docs/manual-mutool-show.html @@ -70,6 +70,8 @@ dictionary, or the keyword "trailer" or "pages". Separate elements with a period '.' or slash '/'. Select a page object by using pages/<i>N</i> where N is the page number. The first page is number 1. +You can also use '*' as an element to iterate over all array indices +or dictionary properties in an object. <dl> <dt> Find the number of pages in a document: diff --git a/source/tools/pdfshow.c b/source/tools/pdfshow.c index 2aae7496..68feb9f8 100644 --- a/source/tools/pdfshow.c +++ b/source/tools/pdfshow.c @@ -28,7 +28,8 @@ static void usage(void) "\t-g\tprint only object, one line per object, suitable for grep\n" "\tpath: path to an object, starting with either an object number,\n" "\t\t'pages', 'trailer', or a property in the trailer;\n" - "\t\tpath elements separated by '.' or '/'.\n" + "\t\tpath elements separated by '.' or '/'. Path elements must be\n" + "\t\tarray index numbers, dictionary property names, or '*'.\n" ); exit(1); } @@ -244,39 +245,59 @@ static int isnumber(char *s) return 1; } -static void showpath(char *sel) +static void showpath(char *path, pdf_obj *obj) { - pdf_obj *obj = NULL; - int pages = 0; - char *part; - while ((part = fz_strsep(&sel, SEP)) != NULL) + if (path && path[0]) { - if (strlen(part) == 0) - continue; - if (!obj) + char *part = fz_strsep(&path, SEP); + if (part && part[0]) { - if (!strcmp(part, "trailer")) - obj = pdf_trailer(ctx, doc); - else if (!strcmp(part, "pages")) - pages = 1; - else if (pages) - obj = pdf_lookup_page_obj(ctx, doc, atoi(part)-1); + if (!strcmp(part, "*")) + { + int i, n; + char buf[1000]; + if (pdf_is_array(ctx, obj)) + { + n = pdf_array_len(ctx, obj); + for (i = 0; i < n; ++i) + { + if (path) + { + fz_strlcpy(buf, path, sizeof buf); + showpath(buf, pdf_array_get(ctx, obj, i)); + } + else + showpath(NULL, pdf_array_get(ctx, obj, i)); + } + } + else if (pdf_is_dict(ctx, obj)) + { + n = pdf_dict_len(ctx, obj); + for (i = 0; i < n; ++i) + { + if (path) + { + fz_strlcpy(buf, path, sizeof buf); + showpath(buf, pdf_dict_get_val(ctx, obj, i)); + } + else + showpath(NULL, pdf_dict_get_val(ctx, obj, i)); + } + } + else + { + printf("null\n"); + } + } else if (isnumber(part)) - obj = pdf_new_indirect(ctx, doc, atoi(part), 0); + showpath(path, pdf_array_get(ctx, obj, atoi(part))); else - obj = pdf_dict_gets(ctx, pdf_trailer(ctx, doc), part); - if (!obj && !pages) - break; + showpath(path, pdf_dict_gets(ctx, obj, part)); } else - { - if (isnumber(part)) - obj = pdf_array_get(ctx, obj, atoi(part)); - else - obj = pdf_dict_gets(ctx, obj, part); - } + printf("null\n"); } - if (obj) + else { if (pdf_is_indirect(ctx, obj)) showobject(obj); @@ -286,10 +307,63 @@ static void showpath(char *sel) printf("\n"); } } +} + +static void showpathpage(char *path) +{ + if (path) + { + char *part = fz_strsep(&path, SEP); + if (part && part[0]) + { + if (!strcmp(part, "*")) + { + int i, n; + char buf[1000]; + n = pdf_count_pages(ctx, doc); + for (i = 0; i < n; ++i) + { + if (path) + { + fz_strlcpy(buf, path, sizeof buf); + showpath(buf, pdf_lookup_page_obj(ctx, doc, i)); + } + else + showpath(NULL, pdf_lookup_page_obj(ctx, doc, i)); + } + } + else if (isnumber(part)) + showpath(path, pdf_lookup_page_obj(ctx, doc, atoi(part)-1)); + else + printf("null\n"); + } + else + printf("null\n"); + } else { - printf("null\n"); + showpages(); + } +} + +static void showpathroot(char *path) +{ + char buf[2000], *list = buf, *part; + fz_strlcpy(buf, path, sizeof buf); + part = fz_strsep(&list, SEP); + if (part && part[0]) + { + if (!strcmp(part, "trailer")) + showpath(list, pdf_trailer(ctx, doc)); + else if (!strcmp(part, "pages")) + showpathpage(list); + else if (isnumber(part)) + showpath(list, pdf_new_indirect(ctx, doc, atoi(part), 0)); + else + showpath(list, pdf_dict_gets(ctx, pdf_trailer(ctx, doc), part)); } + else + printf("null\n"); } static void show(char *sel) @@ -305,7 +379,7 @@ static void show(char *sel) else if (!strcmp(sel, "outline")) showoutline(); else - showpath(sel); + showpathroot(sel); } int pdfshow_main(int argc, char **argv) |