add use layout or not option (#145)

* add use layout or not option

* trival

api/apps/conversation_app.py

@@ -196,7 +196,10 @@ def chat(dialog, messages, **kwargs):
 
     for _ in range(len(questions)//2):
         questions.append(questions[-1])
-    kbinfos = retrievaler.retrieval(" ".join(questions), embd_mdl, dialog.tenant_id, dialog.kb_ids, 1, dialog.top_n,
+    if "knowledge" not in [p["key"] for p in prompt_config["parameters"]]:
+        kbinfos = {"total":0, "chunks":[],"doc_aggs":[]}
+    else:
+        kbinfos = retrievaler.retrieval(" ".join(questions), embd_mdl, dialog.tenant_id, dialog.kb_ids, 1, dialog.top_n,
                                     dialog.similarity_threshold,
                                     dialog.vector_similarity_weight, top=1024, aggs=False)
     knowledges = [ck["content_with_weight"] for ck in kbinfos["chunks"]]

api/apps/document_app.py

@@ -310,7 +310,10 @@ def change_parser():
         if not e:
             return get_data_error_result(retmsg="Document not found!")
         if doc.parser_id.lower() == req["parser_id"].lower():
-            return get_json_result(data=True)
+            if "parser_config" in req:
+                if req["parser_config"] == doc.parser_config:
+                    return get_json_result(data=True)
+            else: return get_json_result(data=True)
 
         if doc.type == FileType.VISUAL or re.search(r"\.(ppt|pptx|pages)$", doc.name):
             return get_data_error_result(retmsg="Not supported yet!")
@@ -319,6 +322,8 @@ def change_parser():
                                          {"parser_id": req["parser_id"], "progress": 0, "progress_msg": "", "run": "0"})
         if not e:
             return get_data_error_result(retmsg="Document not found!")
+        if "parser_config" in req:
+            DocumentService.update_parser_config(doc.id, req["parser_config"])
         if doc.token_num > 0:
             e = DocumentService.increment_chunk_num(doc.id, doc.kb_id, doc.token_num * -1, doc.chunk_num * -1,
                                                     doc.process_duation * -1)

api/db/init_data.py

@@ -276,7 +276,7 @@ def init_llm_factory():
     drop table llm_factories;
     update tenant_llm set llm_factory='Tongyi-Qianwen' where llm_factory='通义千问';
     update tenant_llm set llm_factory='ZHIPU-AI' where llm_factory='智谱AI';
-    update tenant set parser_ids='naive:General,one:One,qa:Q&A,resume:Resume,table:Table,laws:Laws,manual:Manual,book:Book,paper:Paper,presentation:Presentation,picture:Picture';
+    update tenant set parser_ids='naive:General,qa:Q&A,resume:Resume,manual:Manual,table:Table,paper:Paper,book:Book,laws:Laws,presentation:Presentation,picture:Picture,one:One';
     alter table knowledgebase modify avatar longtext;
     alter table user modify avatar longtext;
     alter table dialog modify icon longtext;
@@ -298,4 +298,3 @@ def init_web_data():
 if __name__ == '__main__':
     init_web_db()
     init_web_data()
-    add_tenant_llm()

api/db/services/document_service.py

@@ -118,9 +118,25 @@ class DocumentService(CommonService):
         if not docs:return
         return docs[0]["tenant_id"]
 
-
     @classmethod
     @DB.connection_context()
     def get_thumbnails(cls, docids):
         fields = [cls.model.id, cls.model.thumbnail]
         return list(cls.model.select(*fields).where(cls.model.id.in_(docids)).dicts())
+
+    @classmethod
+    @DB.connection_context()
+    def update_parser_config(cls, id, config):
+        e, d = cls.get_by_id(id)
+        if not e:raise LookupError(f"Document({id}) not found.")
+        def dfs_update(old, new):
+            for k,v in new.items():
+                if k not in old:
+                    old[k] = v
+                    continue
+                if isinstance(v, dict):
+                    assert isinstance(old[k], dict)
+                    dfs_update(old[k], v)
+                else: old[k] = v
+        dfs_update(d.parser_config, config)
+        cls.update_by_id(id, {"parser_config": d.parser_config})

api/settings.py

@@ -94,7 +94,7 @@ ASR_MDL = default_llm[LLM_FACTORY]["asr_model"]
 IMAGE2TEXT_MDL = default_llm[LLM_FACTORY]["image2text_model"]
 
 API_KEY = LLM.get("api_key", "")
-PARSERS = LLM.get("parsers", "naive:General,one:One,qa:Q&A,resume:Resume,table:Table,laws:Laws,manual:Manual,book:Book,paper:Paper,presentation:Presentation,picture:Picture")
+PARSERS = LLM.get("parsers", "naive:General,qa:Q&A,resume:Resume,manual:Manual,table:Table,paper:Paper,book:Book,laws:Laws,presentation:Presentation,picture:Picture,one:One")
 
 # distribution
 DEPENDENT_DISTRIBUTION = get_base_config("dependent_distribution", False)

deepdoc/parser/__init__.py

@@ -1,6 +1,6 @@
 
 
-from .pdf_parser import HuParser as PdfParser
+from .pdf_parser import HuParser as PdfParser, PlainParser
 from .docx_parser import HuDocxParser as DocxParser
 from .excel_parser import HuExcelParser as ExcelParser
 from .ppt_parser import HuPptParser as PptParser

deepdoc/parser/pdf_parser.py

@@ -1073,5 +1073,37 @@ class HuParser:
         return poss
 
 
+class PlainParser(object):
+    def __call__(self, filename, **kwargs):
+        self.outlines = []
+        lines = []
+        try:
+            self.pdf = pdf2_read(filename if isinstance(filename, str) else BytesIO(filename))
+            outlines = self.pdf.outline
+            for page in self.pdf.pages:
+                lines.extend([t for t in page.extract_text().split("\n")])
+
+            def dfs(arr, depth):
+                for a in arr:
+                    if isinstance(a, dict):
+                        self.outlines.append((a["/Title"], depth))
+                        continue
+                    dfs(a, depth + 1)
+
+            dfs(outlines, 0)
+        except Exception as e:
+            logging.warning(f"Outlines exception: {e}")
+        if not self.outlines:
+            logging.warning(f"Miss outlines")
+
+        return [(l, "") for l in lines], []
+
+    def crop(self, ck, need_position):
+        raise NotImplementedError
+
+    @staticmethod
+    def remove_tag(txt):
+        raise NotImplementedError
+
 if __name__ == "__main__":
     pass

rag/app/book.py

@@ -12,10 +12,12 @@
 #
 import copy
 import re
+from io import BytesIO
+
 from rag.nlp import bullets_category, is_english, tokenize, remove_contents_table, \
-    hierarchical_merge, make_colon_as_title, naive_merge, random_choices, tokenize_table, add_positions
+    hierarchical_merge, make_colon_as_title, naive_merge, random_choices, tokenize_table, add_positions, tokenize_chunks
 from rag.nlp import huqie
-from deepdoc.parser import PdfParser, DocxParser
+from deepdoc.parser import PdfParser, DocxParser, PlainParser
 
 
 class Pdf(PdfParser):
@@ -69,10 +71,12 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
         sections, tbls = doc_parser(binary if binary else filename, from_page=from_page, to_page=to_page)
         remove_contents_table(sections, eng=is_english(random_choices([t for t,_ in sections], k=200)))
         callback(0.8, "Finish parsing.")
+
     elif re.search(r"\.pdf$", filename, re.IGNORECASE):
-        pdf_parser = Pdf()
+        pdf_parser = Pdf() if kwargs.get("parser_config",{}).get("layout_recognize", True) else PlainParser()
         sections, tbls = pdf_parser(filename if not binary else binary,
                          from_page=from_page, to_page=to_page, callback=callback)
+
     elif re.search(r"\.txt$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
         txt = ""
@@ -87,31 +91,24 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
         sections = [(l,"") for l in sections if l]
         remove_contents_table(sections, eng = is_english(random_choices([t for t,_ in sections], k=200)))
         callback(0.8, "Finish parsing.")
+
     else: raise NotImplementedError("file type not supported yet(docx, pdf, txt supported)")
 
     make_colon_as_title(sections)
     bull = bullets_category([t for t in random_choices([t for t,_ in sections], k=100)])
-    if bull >= 0: cks = hierarchical_merge(bull, sections, 3)
+    if bull >= 0:
+        chunks = ["\n".join(ck) for ck in hierarchical_merge(bull, sections, 3)]
     else:
         sections = [s.split("@") for s,_ in sections]
         sections = [(pr[0], "@"+pr[1]) for pr in sections if len(pr)==2]
-        cks = naive_merge(sections, kwargs.get("chunk_token_num", 256), kwargs.get("delimer", "\n。；！？"))
+        chunks = naive_merge(sections, kwargs.get("chunk_token_num", 256), kwargs.get("delimer", "\n。；！？"))
 
     # is it English
     eng = lang.lower() == "english"#is_english(random_choices([t for t, _ in sections], k=218))
 
     res = tokenize_table(tbls, doc, eng)
+    res.extend(tokenize_chunks(chunks, doc, eng, pdf_parser))
 
-    # wrap up to es documents
-    for ck in cks:
-        d = copy.deepcopy(doc)
-        ck = "\n".join(ck)
-        if pdf_parser:
-            d["image"], poss = pdf_parser.crop(ck, need_position=True)
-            add_positions(d, poss)
-            ck = pdf_parser.remove_tag(ck)
-        tokenize(d, ck, eng)
-        res.append(d)
     return res
 
 

rag/app/laws.py

@@ -15,9 +15,9 @@ import re
 from io import BytesIO
 from docx import Document
 from rag.nlp import bullets_category, is_english, tokenize, remove_contents_table, hierarchical_merge, \
-    make_colon_as_title, add_positions
+    make_colon_as_title, add_positions, tokenize_chunks
 from rag.nlp import huqie
-from deepdoc.parser import PdfParser, DocxParser
+from deepdoc.parser import PdfParser, DocxParser, PlainParser
 from rag.settings import cron_logger
 
 
@@ -68,7 +68,7 @@ class Pdf(PdfParser):
 
         callback(0.8, "Text extraction finished")
 
-        return [b["text"] + self._line_tag(b, zoomin) for b in self.boxes]
+        return [(b["text"], self._line_tag(b, zoomin)) for b in self.boxes]
 
 
 def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", callback=None, **kwargs):
@@ -87,11 +87,13 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
         for txt in Docx()(filename, binary):
             sections.append(txt)
         callback(0.8, "Finish parsing.")
+
     elif re.search(r"\.pdf$", filename, re.IGNORECASE):
-        pdf_parser = Pdf()
-        for txt in pdf_parser(filename if not binary else binary,
-                         from_page=from_page, to_page=to_page, callback=callback):
-            sections.append(txt)
+            pdf_parser = Pdf() if kwargs.get("parser_config",{}).get("layout_recognize", True) else PlainParser()
+            for txt, poss in pdf_parser(filename if not binary else binary,
+                             from_page=from_page, to_page=to_page, callback=callback):
+                sections.append(txt + poss)
+
     elif re.search(r"\.txt$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
         txt = ""
@@ -114,22 +116,10 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
 
     make_colon_as_title(sections)
     bull = bullets_category(sections)
-    cks = hierarchical_merge(bull, sections, 3)
-    if not cks: callback(0.99, "No chunk parsed out.")
+    chunks = hierarchical_merge(bull, sections, 3)
+    if not chunks: callback(0.99, "No chunk parsed out.")
 
-    res = []
-    # wrap up to es documents
-    for ck in cks:
-        print("\n-".join(ck))
-        ck = "\n".join(ck)
-        d = copy.deepcopy(doc)
-        if pdf_parser:
-            d["image"], poss = pdf_parser.crop(ck, need_position=True)
-            add_positions(d, poss)
-            ck = pdf_parser.remove_tag(ck)
-        tokenize(d, ck, eng)
-        res.append(d)
-    return res
+    return tokenize_chunks(["\n".join(ck) for ck in chunks], doc, eng, pdf_parser)
 
 
 if __name__ == "__main__":

rag/app/manual.py

@@ -2,8 +2,8 @@ import copy
 import re
 
 from api.db import ParserType
-from rag.nlp import huqie, tokenize, tokenize_table, add_positions, bullets_category, title_frequency
-from deepdoc.parser import PdfParser
+from rag.nlp import huqie, tokenize, tokenize_table, add_positions, bullets_category, title_frequency, tokenize_chunks
+from deepdoc.parser import PdfParser, PlainParser
 from rag.utils import num_tokens_from_string
 
 
@@ -30,9 +30,7 @@ class Pdf(PdfParser):
         #        print(b)
         print("OCR:", timer()-start)
 
-        def tag(pn, left, right, top, bottom):
-            return "@@{}\t{:.1f}\t{:.1f}\t{:.1f}\t{:.1f}##" \
-                .format(pn, left, right, top, bottom)
+
 
         self._layouts_rec(zoomin)
         callback(0.65, "Layout analysis finished.")
@@ -49,6 +47,8 @@ class Pdf(PdfParser):
         for b in self.boxes:
             b["text"] = re.sub(r"([\t 　]|\u3000){2,}", " ", b["text"].strip())
 
+        return [(b["text"], b.get("layout_no", ""), self.get_position(b, zoomin)) for i, b in enumerate(self.boxes)]
+
         # set pivot using the most frequent type of title,
         # then merge between 2 pivot
         if len(self.boxes)>0 and len(self.outlines)/len(self.boxes) > 0.1:
@@ -103,9 +103,10 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
     pdf_parser = None
 
     if re.search(r"\.pdf$", filename, re.IGNORECASE):
-        pdf_parser = Pdf()
-        cks, tbls = pdf_parser(filename if not binary else binary,
-                           from_page=from_page, to_page=to_page, callback=callback)
+        pdf_parser = Pdf() if kwargs.get("parser_config",{}).get("layout_recognize", True) else PlainParser()
+        sections, tbls = pdf_parser(filename if not binary else binary,
+                               from_page=from_page, to_page=to_page, callback=callback)
+        if sections and len(sections[0])<3: cks = [(t, l, [0]*5) for t, l in sections]
     else: raise NotImplementedError("file type not supported yet(pdf supported)")
     doc = {
         "docnm_kwd": filename
@@ -115,13 +116,60 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
     # is it English
     eng = lang.lower() == "english"#pdf_parser.is_english
 
+    # set pivot using the most frequent type of title,
+    # then merge between 2 pivot
+    if len(sections) > 0 and len(pdf_parser.outlines) / len(sections) > 0.1:
+        max_lvl = max([lvl for _, lvl in pdf_parser.outlines])
+        most_level = max(0, max_lvl - 1)
+        levels = []
+        for txt, _, _ in sections:
+            for t, lvl in pdf_parser.outlines:
+                tks = set([t[i] + t[i + 1] for i in range(len(t) - 1)])
+                tks_ = set([txt[i] + txt[i + 1] for i in range(min(len(t), len(txt) - 1))])
+                if len(set(tks & tks_)) / max([len(tks), len(tks_), 1]) > 0.8:
+                    levels.append(lvl)
+                    break
+            else:
+                levels.append(max_lvl + 1)
+    else:
+        bull = bullets_category([txt for txt,_,_ in sections])
+        most_level, levels = title_frequency(bull, [(txt, l) for txt, l, poss in sections])
+
+    assert len(sections) == len(levels)
+    sec_ids = []
+    sid = 0
+    for i, lvl in enumerate(levels):
+        if lvl <= most_level and i > 0 and lvl != levels[i - 1]: sid += 1
+        sec_ids.append(sid)
+        # print(lvl, self.boxes[i]["text"], most_level, sid)
+
+    sections = [(txt, sec_ids[i], poss) for i, (txt, _, poss) in enumerate(sections)]
+    for (img, rows), poss in tbls:
+        sections.append((rows if isinstance(rows, str) else rows[0], -1,
+                         [(p[0] + 1 - from_page, p[1], p[2], p[3], p[4]) for p in poss]))
+
+    def tag(pn, left, right, top, bottom):
+        if pn+left+right+top+bottom == 0:
+            return ""
+        return "@@{}\t{:.1f}\t{:.1f}\t{:.1f}\t{:.1f}##" \
+            .format(pn, left, right, top, bottom)
+
+    chunks = []
+    last_sid = -2
+    tk_cnt = 0
+    for txt, sec_id, poss in sorted(sections, key=lambda x: (x[-1][0][0], x[-1][0][3], x[-1][0][1])):
+        poss = "\t".join([tag(*pos) for pos in poss])
+        if tk_cnt < 2048 and (sec_id == last_sid or sec_id == -1):
+            if chunks:
+                chunks[-1] += "\n" + txt + poss
+                tk_cnt += num_tokens_from_string(txt)
+                continue
+        chunks.append(txt + poss)
+        tk_cnt = num_tokens_from_string(txt)
+        if sec_id > -1: last_sid = sec_id
+
     res = tokenize_table(tbls, doc, eng)
-    for ck in cks:
-        d = copy.deepcopy(doc)
-        d["image"], poss = pdf_parser.crop(ck, need_position=True)
-        add_positions(d, poss)
-        tokenize(d, pdf_parser.remove_tag(ck), eng)
-        res.append(d)
+    res.extend(tokenize_chunks(chunks, doc, eng, pdf_parser))
     return res
 
 

rag/app/naive.py

@@ -12,8 +12,9 @@
 #
 import copy
 import re
+from deepdoc.parser.pdf_parser import PlainParser
 from rag.app import laws
-from rag.nlp import huqie, is_english, tokenize, naive_merge, tokenize_table, add_positions
+from rag.nlp import huqie, is_english, tokenize, naive_merge, tokenize_table, add_positions, tokenize_chunks
 from deepdoc.parser import PdfParser, ExcelParser
 from rag.settings import cron_logger
 
@@ -56,6 +57,7 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
     """
 
     eng = lang.lower() == "english"#is_english(cks)
+    parser_config = kwargs.get("parser_config", {"chunk_token_num": 128, "delimiter": "\n!?。；！？", "layout_recognize": True})
     doc = {
         "docnm_kwd": filename,
         "title_tks": huqie.qie(re.sub(r"\.[a-zA-Z]+$", "", filename))
@@ -69,15 +71,18 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
         for txt in laws.Docx()(filename, binary):
             sections.append((txt, ""))
         callback(0.8, "Finish parsing.")
+
     elif re.search(r"\.pdf$", filename, re.IGNORECASE):
-        pdf_parser = Pdf()
+        pdf_parser = Pdf() if parser_config["layout_recognize"] else PlainParser()
         sections, tbls = pdf_parser(filename if not binary else binary,
                               from_page=from_page, to_page=to_page, callback=callback)
         res = tokenize_table(tbls, doc, eng)
+
     elif re.search(r"\.xlsx?$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
         excel_parser = ExcelParser()
         sections = [(excel_parser.html(binary), "")]
+
     elif re.search(r"\.txt$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
         txt = ""
@@ -92,26 +97,13 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
         sections = txt.split("\n")
         sections = [(l, "") for l in sections if l]
         callback(0.8, "Finish parsing.")
+
     else:
         raise NotImplementedError("file type not supported yet(docx, pdf, txt supported)")
 
-    parser_config = kwargs.get("parser_config", {"chunk_token_num": 128, "delimiter": "\n!?。；！？"})
-    cks = naive_merge(sections, parser_config.get("chunk_token_num", 128), parser_config.get("delimiter", "\n!?。；！？"))
+    chunks = naive_merge(sections, parser_config.get("chunk_token_num", 128), parser_config.get("delimiter", "\n!?。；！？"))
 
-    # wrap up to es documents
-    for ck in cks:
-        if len(ck.strip()) == 0:continue
-        print("--", ck)
-        d = copy.deepcopy(doc)
-        if pdf_parser:
-            try:
-                d["image"], poss = pdf_parser.crop(ck, need_position=True)
-            except Exception as e:
-                continue
-            add_positions(d, poss)
-            ck = pdf_parser.remove_tag(ck)
-        tokenize(d, ck, eng)
-        res.append(d)
+    res.extend(tokenize_chunks(chunks, doc, eng, pdf_parser))
     return res
 
 

rag/app/one.py

@@ -13,7 +13,7 @@
 import re
 from rag.app import laws
 from rag.nlp import huqie, tokenize
-from deepdoc.parser import PdfParser, ExcelParser
+from deepdoc.parser import PdfParser, ExcelParser, PlainParser
 
 
 class Pdf(PdfParser):
@@ -45,7 +45,7 @@ class Pdf(PdfParser):
         for (img, rows), poss in tbls:
             sections.append((rows if isinstance(rows, str) else rows[0],
                              [(p[0] + 1 - from_page, p[1], p[2], p[3], p[4]) for p in poss]))
-        return [txt for txt, _ in sorted(sections, key=lambda x: (x[-1][0][0], x[-1][0][3], x[-1][0][1]))]
+        return [(txt, "") for txt, _ in sorted(sections, key=lambda x: (x[-1][0][0], x[-1][0][3], x[-1][0][1]))]
 
 
 def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", callback=None, **kwargs):
@@ -59,16 +59,19 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
     sections = []
     if re.search(r"\.docx?$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
-        for txt in laws.Docx()(filename, binary):
-            sections.append(txt)
+        sections = [txt for txt in laws.Docx()(filename, binary) if txt]
         callback(0.8, "Finish parsing.")
+
     elif re.search(r"\.pdf$", filename, re.IGNORECASE):
-        pdf_parser = Pdf()
+        pdf_parser = Pdf() if kwargs.get("parser_config",{}).get("layout_recognize", True) else PlainParser()
         sections = pdf_parser(filename if not binary else binary, to_page=to_page, callback=callback)
+        sections = [s for s, _ in sections if s]
+
     elif re.search(r"\.xlsx?$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
         excel_parser = ExcelParser()
         sections = [excel_parser.html(binary)]
+
     elif re.search(r"\.txt$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
         txt = ""
@@ -81,8 +84,9 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
                     if not l: break
                     txt += l
         sections = txt.split("\n")
-        sections = [(l, "") for l in sections if l]
+        sections = [s for s in sections if s]
         callback(0.8, "Finish parsing.")
+
     else:
         raise NotImplementedError("file type not supported yet(docx, pdf, txt supported)")
 

rag/app/paper.py

@@ -15,8 +15,8 @@ import re
 from collections import Counter
 
 from api.db import ParserType
-from rag.nlp import huqie, tokenize, tokenize_table, add_positions, bullets_category, title_frequency
-from deepdoc.parser import PdfParser
+from rag.nlp import huqie, tokenize, tokenize_table, add_positions, bullets_category, title_frequency, tokenize_chunks
+from deepdoc.parser import PdfParser, PlainParser
 import numpy as np
 from rag.utils import num_tokens_from_string
 
@@ -59,24 +59,6 @@ class Pdf(PdfParser):
             self.boxes = self.sort_X_by_page(self.boxes, column_width / 2)
         for b in self.boxes:
             b["text"] = re.sub(r"([\t 　]|\u3000){2,}", " ", b["text"].strip())
-        # freq = Counter([b["text"] for b in self.boxes])
-        # garbage = set([k for k, v in freq.items() if v > self.total_page * 0.6])
-        # i = 0
-        # while i < len(self.boxes):
-        #     if self.boxes[i]["text"] in garbage \
-        #             or (re.match(r"[a-zA-Z0-9]+$", self.boxes[i]["text"]) and not self.boxes[i].get("layoutno")) \
-        #             or (i + 1 < len(self.boxes) and self.boxes[i]["text"] == self.boxes[i + 1]["text"]):
-        #         self.boxes.pop(i)
-        #     elif i + 1 < len(self.boxes) and self.boxes[i].get("layoutno", '0') == self.boxes[i + 1].get("layoutno",
-        #                                                                                                  '1'):
-        #         # merge within same layouts
-        #         self.boxes[i + 1]["top"] = self.boxes[i]["top"]
-        #         self.boxes[i + 1]["x0"] = min(self.boxes[i]["x0"], self.boxes[i + 1]["x0"])
-        #         self.boxes[i + 1]["x1"] = max(self.boxes[i]["x1"], self.boxes[i + 1]["x1"])
-        #         self.boxes[i + 1]["text"] = self.boxes[i]["text"] + " " + self.boxes[i + 1]["text"]
-        #         self.boxes.pop(i)
-        #     else:
-        #         i += 1
 
         def _begin(txt):
             return re.match(
@@ -148,9 +130,19 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
     """
     pdf_parser = None
     if re.search(r"\.pdf$", filename, re.IGNORECASE):
-        pdf_parser = Pdf()
-        paper = pdf_parser(filename if not binary else binary,
-                           from_page=from_page, to_page=to_page, callback=callback)
+        if not kwargs.get("parser_config",{}).get("layout_recognize", True):
+            pdf_parser = PlainParser()
+            paper = {
+                "title": filename,
+                "authors": " ",
+                "abstract": "",
+                "sections": pdf_parser(filename if not binary else binary),
+                "tables": []
+            }
+        else:
+            pdf_parser = Pdf()
+            paper = pdf_parser(filename if not binary else binary,
+                               from_page=from_page, to_page=to_page, callback=callback)
     else: raise NotImplementedError("file type not supported yet(pdf supported)")
 
     doc = {"docnm_kwd": filename, "authors_tks": huqie.qie(paper["authors"]),
@@ -195,16 +187,10 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
                 continue
         chunks.append(txt)
         last_sid = sec_id
-    for txt in chunks:
-        d = copy.deepcopy(doc)
-        d["image"], poss = pdf_parser.crop(txt, need_position=True)
-        add_positions(d, poss)
-        tokenize(d, pdf_parser.remove_tag(txt), eng)
-        res.append(d)
-        print("----------------------\n", pdf_parser.remove_tag(txt))
-
+    res.extend(tokenize_chunks(chunks, doc, eng, pdf_parser))
     return res
 
+"""
     readed = [0] * len(paper["lines"])
     # find colon firstly
     i = 0
@@ -280,7 +266,7 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
         print(d)
         # d["image"].save(f"./logs/{i}.jpg")
     return res
-
+"""
 
 if __name__ == "__main__":
     import sys

rag/app/presentation.py

@@ -18,7 +18,8 @@ from PIL import Image
 
 from rag.nlp import tokenize, is_english
 from rag.nlp import huqie
-from deepdoc.parser import PdfParser, PptParser
+from deepdoc.parser import PdfParser, PptParser, PlainParser
+from PyPDF2 import PdfReader as pdf2_read
 
 
 class Ppt(PptParser):
@@ -56,19 +57,6 @@ class Pdf(PdfParser):
         callback(0.8, "Page {}~{}: OCR finished".format(from_page, min(to_page, self.total_page)))
         assert len(self.boxes) == len(self.page_images), "{} vs. {}".format(len(self.boxes), len(self.page_images))
         res = []
-        #################### More precisely ###################
-        # self._layouts_rec(zoomin)
-        # self._text_merge()
-        # pages = {}
-        # for b in self.boxes:
-        #     if self.__garbage(b["text"]):continue
-        #     if b["page_number"] not in pages: pages[b["page_number"]] = []
-        #     pages[b["page_number"]].append(b["text"])
-        # for i, lines in pages.items():
-        #     res.append(("\n".join(lines), self.page_images[i-1]))
-        # return res
-        ########################################
-
         for i in range(len(self.boxes)):
             lines = "\n".join([b["text"] for b in self.boxes[i] if not self.__garbage(b["text"])])
             res.append((lines, self.page_images[i]))
@@ -76,6 +64,16 @@ class Pdf(PdfParser):
         return res
 
 
+class PlainPdf(PlainParser):
+    def __call__(self, filename, binary=None, callback=None, **kwargs):
+        self.pdf = pdf2_read(filename if not binary else BytesIO(filename))
+        page_txt = []
+        for page in self.pdf.pages:
+            page_txt.append(page.extract_text())
+        callback(0.9, "Parsing finished")
+        return [(txt, None) for txt in page_txt]
+
+
 def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", callback=None, **kwargs):
     """
     The supported file formats are pdf, pptx.
@@ -102,14 +100,14 @@ def chunk(filename, binary=None, from_page=0, to_page=100000, lang="Chinese", ca
             res.append(d)
         return res
     elif re.search(r"\.pdf$", filename, re.IGNORECASE):
-        pdf_parser = Pdf()
-        for pn, (txt,img) in enumerate(pdf_parser(filename if not binary else binary, from_page=from_page, to_page=to_page, callback=callback)):
+        pdf_parser = Pdf() if kwargs.get("parser_config",{}).get("layout_recognize", True) else PlainPdf()
+        for pn, (txt,img) in enumerate(pdf_parser(filename, binary, from_page=from_page, to_page=to_page, callback=callback)):
             d = copy.deepcopy(doc)
             pn += from_page
-            d["image"] = img
+            if img: d["image"] = img
             d["page_num_int"] = [pn+1]
             d["top_int"] = [0]
-            d["position_int"] = [(pn + 1, 0, img.size[0], 0, img.size[1])]
+            d["position_int"] = [(pn + 1, 0, img.size[0] if img else 0, 0, img.size[1] if img else 0)]
             tokenize(d, txt, eng)
             res.append(d)
         return res

rag/nlp/__init__.py

@@ -76,6 +76,25 @@ def tokenize(d, t, eng):
     d["content_sm_ltks"] = huqie.qieqie(d["content_ltks"])
 
 
+def tokenize_chunks(chunks, doc, eng, pdf_parser):
+    res = []
+    # wrap up as es documents
+    for ck in chunks:
+        if len(ck.strip()) == 0:continue
+        print("--", ck)
+        d = copy.deepcopy(doc)
+        if pdf_parser:
+            try:
+                d["image"], poss = pdf_parser.crop(ck, need_position=True)
+                add_positions(d, poss)
+                ck = pdf_parser.remove_tag(ck)
+            except NotImplementedError as e:
+                pass
+        tokenize(d, ck, eng)
+        res.append(d)
+    return res
+
+
 def tokenize_table(tbls, doc, eng, batch_size=10):
     res = []
     # add tables

rag/nlp/huqie.py

@@ -300,7 +300,11 @@ class Huqie:
     def qieqie(self, tks):
         tks = tks.split(" ")
         zh_num = len([1 for c in tks if c and is_chinese(c[0])])
-        if zh_num < len(tks) * 0.2:return " ".join(tks)
+        if zh_num < len(tks) * 0.2:
+            res = []
+            for tk in tks:
+                res.extend(tk.split("/"))
+            return " ".join(res)
 
         res = []
         for tk in tks:

rag/nlp/search.py

@@ -68,6 +68,7 @@ class Dealer:
         s = Search()
         pg = int(req.get("page", 1)) - 1
         ps = int(req.get("size", 1000))
+        topk = int(req.get("topk", 1024))
         src = req.get("fields", ["docnm_kwd", "content_ltks", "kb_id", "img_id",
                                  "image_id", "doc_id", "q_512_vec", "q_768_vec", "position_int",
                                  "q_1024_vec", "q_1536_vec", "available_int", "content_with_weight"])
@@ -103,7 +104,7 @@ class Dealer:
             assert emb_mdl, "No embedding model selected"
             s["knn"] = self._vector(
                 qst, emb_mdl, req.get(
-                    "similarity", 0.1), ps)
+                    "similarity", 0.1), topk)
             s["knn"]["filter"] = bqry.to_dict()
             if "highlight" in s:
                 del s["highlight"]
@@ -292,8 +293,8 @@ class Dealer:
         ranks = {"total": 0, "chunks": [], "doc_aggs": {}}
         if not question:
             return ranks
-        req = {"kb_ids": kb_ids, "doc_ids": doc_ids, "size": top,
-               "question": question, "vector": True,
+        req = {"kb_ids": kb_ids, "doc_ids": doc_ids, "size": page_size,
+               "question": question, "vector": True, "topk": top,
                "similarity": similarity_threshold}
         sres = self.search(req, index_name(tenant_id), embd_mdl)
 

rag/svr/task_broker.py

@@ -81,11 +81,15 @@ def dispatch():
 
         tsks = []
         if r["type"] == FileType.PDF.value:
+            if not r["parser_config"].get("layout_recognize", True):
+                tsks.append(new_task())
+                continue
             pages = PdfParser.total_page_number(r["name"], MINIO.get(r["kb_id"], r["location"]))
-            page_size = 12
-            if r["parser_id"] == "paper": page_size = 22
+            page_size = r["parser_config"].get("task_page_size", 12)
+            if r["parser_id"] == "paper": page_size = r["parser_config"].get("task_page_size", 22)
             if r["parser_id"] == "one": page_size = 1000000000
-            for s,e in r["parser_config"].get("pages", [(0,100000)]):
+            for s,e in r["parser_config"].get("pages", [(1, 100000)]):
+                s -= 1
                 e = min(e, pages)
                 for p in range(s, e, page_size):
                     task = new_task()