diff options
Diffstat (limited to 'man.c')
| -rw-r--r-- | man.c | 119 |
1 files changed, 119 insertions, 0 deletions
@@ -0,0 +1,119 @@ +/* + * motif-based man page renderer + * (c) 2001 Gerd Knorr <kraxel@bytesex.org> + * + */ + +#include <stdio.h> + +#include <X11/Xlib.h> +#include <X11/Intrinsic.h> +#include <Xm/Xm.h> +#include <Xm/Form.h> +#include <Xm/Label.h> +#include <Xm/RowColumn.h> +#include <Xm/PushB.h> +#include <Xm/ScrolledW.h> +#include <Xm/SelectioB.h> + +#include "RegEdit.h" +#include "man.h" + +extern Display *dpy; +extern Widget app_shell; + +/*----------------------------------------------------------------------*/ + +#define MAN_UNDEF 0 +#define MAN_NORMAL 1 +#define MAN_BOLD 2 +#define MAN_UNDERLINE 3 + +static XmStringTag man_tags[] = { + NULL, NULL, "bold", "underline" +}; + +static void +man_destroy(Widget widget, XtPointer clientdata, XtPointer call_data) +{ + XtDestroyWidget(clientdata); +} + +void +man(char *page) +{ + Widget dlg,view,label; + XmString xmpage,xmchunk; + char line[1024],chunk[256]; + int s,d,cur,last; + FILE *fp; + + /* build dialog */ + dlg = XmCreatePromptDialog(app_shell,"man",NULL,0); + XmdRegisterEditres(XtParent(dlg)); + XtUnmanageChild(XmSelectionBoxGetChild(dlg,XmDIALOG_SELECTION_LABEL)); + XtUnmanageChild(XmSelectionBoxGetChild(dlg,XmDIALOG_HELP_BUTTON)); + XtUnmanageChild(XmSelectionBoxGetChild(dlg,XmDIALOG_CANCEL_BUTTON)); + XtUnmanageChild(XmSelectionBoxGetChild(dlg,XmDIALOG_TEXT)); + XtAddCallback(dlg,XmNokCallback,man_destroy,dlg); + view = XmCreateScrolledWindow(dlg,"view",NULL,0); + XtManageChild(view); + label = XtVaCreateManagedWidget("label", xmLabelWidgetClass,view, NULL); + XtManageChild(dlg); + + /* fetch page and render into XmString */ + sprintf(line,"man %s 2>/dev/null",page); + fp = popen(line,"r"); + xmpage = XmStringGenerate("", NULL, XmMULTIBYTE_TEXT, NULL); + while (NULL != fgets(line,sizeof(line)-1,fp)) { + last = MAN_UNDEF; + for (s = 0, d = 0; line[s] != '\0';) { + /* check current char */ + cur = MAN_NORMAL; + if (line[s+1] == '\010' && line[s] == line[s+2]) + cur = MAN_BOLD; + if (line[s] == '_' && line[s+1] == '\010') + cur = MAN_UNDERLINE; + /* add chunk if completed */ + if (MAN_UNDEF != last && cur != last) { + xmchunk = XmStringGenerate(chunk,NULL,XmMULTIBYTE_TEXT, + man_tags[last]); + xmpage = XmStringConcatAndFree(xmpage,xmchunk); + d = 0; + } + /* add char to chunk */ + switch (cur) { + case MAN_BOLD: + case MAN_UNDERLINE: + s += 2; + case MAN_NORMAL: + chunk[d++] = line[s++]; + break; + } + chunk[d] = '\0'; + last = cur; + } + /* add last chunk for line */ + xmchunk = XmStringGenerate(chunk, NULL, XmMULTIBYTE_TEXT, + man_tags[last]); + xmpage = XmStringConcatAndFree(xmpage,xmchunk); + } + XtVaSetValues(label,XmNlabelString,xmpage,NULL); + XmStringFree(xmpage); + fclose(fp); +} + +void +man_cb(Widget widget, XtPointer clientdata, XtPointer call_data) +{ + char *page = clientdata; + man(page); +} + +void +man_action(Widget widget, XEvent *event, + String *params, Cardinal *num_params) +{ + if (*num_params > 0) + man(params[0]); +} |